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Science MCQ (1 Marks)

Water: A Precious Resource · Gujarat Board (GSEB) STD 7 (GSEB - English Medium). 149 questions.

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MCQ (1 Marks)

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50 questions · auto-graded multiple-choice test.

MCQ 11 Mark
What is the taste of ocean water?
  • ✓
    Salty
  • B
    Sour
  • C
    Sweet
  • D
    Tasteless
Answer
Correct option: A.
Salty
Ocean water is salty.
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MCQ 21 Mark
To minimise the wastage of water is:
  • A
    Wash cloth with machine.
  • B
    Wash the floor everyday.
  • ✓
    Turn off taps while brushing.
  • D
    None of these.
Answer
Correct option: C.
Turn off taps while brushing.
To minimise the wastage of water is turn off taps while brushing.
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MCQ 31 Mark
This method does not result in conservation of water:
  • A
    Recycling water
  • B
    Planting more trees
  • ✓
    Cutting vegetation
  • D
    Using drip irrigation
Answer
Correct option: C.
Cutting vegetation
Cutting vegetation does not conserve plant.
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MCQ 41 Mark
Which of the following does not show water shortage$?$
  • A
    Taps running dry.
  • B
    Long queues for getting water.
  • C
    Marches and protests for demand of water.
  • ✓
    A family gets three buckets of water per person per day.
Answer
Correct option: D.
A family gets three buckets of water per person per day.
According to the recommendation of United Nations $(UN)$ minimum $50$ litres of water per person per day should be provided.
Hence, three buckets (nearly $60$ litres) of water is sufficient for a person for one day.
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MCQ 51 Mark
Oceans and seas cover $........$ of the earth:
  • A
    Half
  • B
    One third
  • ✓
    Two third
  • D
    Three fourth
Answer
Correct option: C.
Two third
Oceans and seas cover two third of the earth surface.
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MCQ 61 Mark
People obtain ground water through:
  • A
    Wells
  • B
    Hand pump
  • ✓
    Both $(a)$ and $(c)$
  • D
    None of these
Answer
Correct option: C.
Both $(a)$ and $(c)$

People obtain ground water through hand pumps and wells.

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MCQ 71 Mark
Which of the following is not responsible for water shortage$?$
  • A
    Rapid growth of industries.
  • B
    Increasing population.
  • ✓
    Heavy rainfall.
  • D
    Mismanagement of water resources.
Answer
Correct option: C.
Heavy rainfall.

Rain is the source of water on earth. And about $71\%$ of the earth’s surface is covered with water. Though, heavy rainfall is the source of water, not for water shortage.

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MCQ 81 Mark
A man digging the ground near a water body found that the soil was moist. As he kept digging deeper and deeper he reached a level where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called:
  • A
    Water level.
  • ✓
    Water table.
  • C
    Ground water.
  • D
    Water limit.
Answer
Correct option: B.
Water table.
The upper limit of the layer where water is present between particles of soil and gaps between rocks is called water table and water below this layer is called groundwater.
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MCQ 91 Mark
During water cycle, the water is circulated from the earth in the form of:
  • A
    Humidity
  • B
    Rain
  • ✓
    Vapour
  • D
    None of the above
Answer
Correct option: C.
Vapour
The cyclic movement of water from the atmosphere to the Earth and back to the atmosphere through various processes is called the water cycle.
Three main steps are involved in the water cycle that is evaporation, condensation, and precipitation.
During the water cycle, water from the earth is circulated in the form of water vapour by evaporation and condenses to form clouds and precipitates back to earth in the form of rain or snow.
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MCQ 101 Mark
Some of the factors which affect the water table at a place and make it go down are:
  • A
    Increase in population.
  • B
    Industrial and agriculture activities.
  • C
    Decreases in the effective area for seepage of rainwater.
  • ✓
    All the above.
Answer
Correct option: D.
All the above.
All the above.
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MCQ 111 Mark
The gases surrounding the earth is:
  • A
    Hydrosphere
  • ✓
    Atmosphere
  • C
    Lithosphere
  • D
    None of these
Answer
Correct option: B.
Atmosphere
The gases surrounding the earth is atmosphere.
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MCQ 121 Mark
The advantages of water harvesting are:
  • A
    Soil and water pollution is reduced.
  • B
    The effects of drought are essential.
  • C
    An improvement of water quality.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
All of these statements are the advantages of water.
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MCQ 131 Mark
The earth appears to be $........$ in colour from space
  • A
    Red.
  • ✓
    Blue.
  • C
    Green.
  • D
    Violet.
Answer
Correct option: B.
Blue.
Blue.
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MCQ 141 Mark
Which of the following are not the liquid forms of water$?$
  1. Snow.
  2. Lake water.
  3. River water.
  4. Water vapour.
  5. Ice.
Choose the correct combination from the options below:
  • ✓
    $(i), (iv)$ and $(v)$
  • B
    $(i)$ and $(ii)$
  • C
    $(ii)$ and $(iii)$
  • D
    $(iv)$ only
Answer
Correct option: A.
$(i), (iv)$ and $(v)$

Snow and ice are frozen while water vapour is in gaseous state. Water from lake and river are in liquid state.

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MCQ 151 Mark
The water fit for drinking is called:
  • A
    Portable water
  • B
    Portrayable water
  • ✓
    Potable water
  • D
    None of these.
Answer
Correct option: C.
Potable water
Water fir for drinking is known as potable water.
If something is potable that means it's safe to drink.
The word comes from the Latin, potare, meaning "to drink".
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MCQ 161 Mark
Read the following sentences carefully, and choose the incorrect one:
  • A
    Water vapor is the gaseous form of water.
  • ✓
    Ice is solid, whereas snow is the semi solid form of water.
  • C
    Ocean water cannot be used for domestic purposes.
  • D
    Rapid growth of industries is one of the causes for water shortage or depletion.
Answer
Correct option: B.
Ice is solid, whereas snow is the semi solid form of water.
Snow is also solid form of water. Water is present in liquid form in ocean, river, lakes, ponds and under the ground. Water is present in gas form as water vapor in the air or atmosphere around us.
Water is present in solid form on snow covered mountains, glaciers and as ice caps on the poles of the earth.
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MCQ 171 Mark
World s Water Day is observed on:
  • A
    $20$ March
  • ✓
    $2$ March
  • C
    $22$ March
  • D
    $15$ March
Answer
Correct option: B.
$2$ March

Worlds Water Day is observed on $22$ March every year.

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MCQ 181 Mark
Which one of the following is the cause of the depletion of water table?
  • A
    Increasing population
  • B
    Agricultural activities
  • C
    Increasing industries
  • ✓
    All of these
Answer
Correct option: D.
All of these
All of these
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MCQ 191 Mark
How much of the earths surface is covered with water?
  • A
    $81\%$
  • B
    $31\%$
  • ✓
    $71\%$
  • D
    $51\%$
Answer
Correct option: C.
$71\%$
About $71$ percent of the Earths surface is water - covered, and the oceans hold about $96.5$ percent of all Earths water.
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MCQ 211 Mark
Minimum wastage of water is called:
  • ✓
    Water management
  • B
    Water cycle
  • C
    Sea level
  • D
    None of these
Answer
Correct option: A.
Water management
Minimum wastage of water is called water management.
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MCQ 221 Mark
The cause of depletion of water table is:
  • ✓
    Increasing industries
  • B
    Water table
  • C
    Rain water
  • D
    None of these
Answer
Correct option: A.
Increasing industries
Every industry requires water in its production process.
As a number of industries increases, more water is drawn from the ground.
All of this result in depletion of the water table.
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MCQ 231 Mark
Seas and oceans are full of water on earth. However, a very small percentage of water present on earth is available for us. This percentage is roughly:
  • ✓
    $0.006\%.$
  • B
    $0.06\%.$
  • C
    $0.6\%.$
  • D
    $6\%.$
Answer
Correct option: A.
$0.006\%.$

Most of the water present on earth is not fit for consumption by us. Sea and oceans contain salty water which cannot be drunk. Even most of the fresh water is frozen as ice in glaciers and polar regions.
Hence, we are left with limited amount of water from lake, river and under the ground.

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MCQ 241 Mark
$………….$ represents the solid form of water.
  • A
    Water vapour
  • ✓
    Snow
  • C
    Lake water
  • D
    Well water
Answer
Correct option: B.
Snow
Snow
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MCQ 251 Mark
When water circulates through the water cycle it can be found in all the $.........$ forms at any given time somewhere on the earth.
  • A
    Four
  • B
    Two
  • ✓
    Three
  • D
    six
Answer
Correct option: C.
Three
When water circulates through the water cycle it can be found in all three forms$, i.e.,$
solid, liquid, and gas at any given time somewhere on the earth.
This continuous cycling of water in its three forms in nature keeps the total amount of water on earth constant even when the whole world is using it.
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MCQ 261 Mark
Which of the following does not how water shortage?
  • A
    Taps running dry.
  • B
    Long queues for getting water.
  • C
    Marches and protests for demand of water.
  • ✓
    A family gets three buckets of water per person per day.
Answer
Correct option: D.
A family gets three buckets of water per person per day.
A family gets three buckets of water per person per day this does not show shortage of water.
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MCQ 271 Mark
The process of recharging the ground water using rain water is known as:
  • ✓
    Water harvesting.
  • B
    Drip Irrigation.
  • C
    Infiltration.
  • D
    Bawri.
Answer
Correct option: A.
Water harvesting.
Water harvesting.
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MCQ 281 Mark
In a science quiz competition, Soni are asked a question where she had to choose the statement which was$/$were incorrect?
  • A
    Millions of people in our country do not get sufficient water.
  • B
    Women and children usually walk several kilometers daily with pitchers to fetch water for household use.
  • C
    The amount of water recommended by the United Nations for a person is a minimum of $50$ liters per day.
  • ✓
    None of the above
Answer
Correct option: D.
None of the above
None of the above
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MCQ 291 Mark
Seepage of water is minimum in:
  • ✓
    Concrete floor
  • B
    Play grounds
  • C
    Gardens
  • D
    Forest lands
Answer
Correct option: A.
Concrete floor
Seepage of water is minimum in concrete floor.
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MCQ 301 Mark
Which of the following inhibits the seepage of rainwater into ground?
  • ✓
    A pukka floor.
  • B
    Playground.
  • C
    Grass lawn.
  • D
    Forest land.
Answer
Correct option: A.
A pukka floor.
A pukka or cemented floor is usually impervious to water, inhibiting the seepage of rainwater into grounds.
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MCQ 311 Mark
The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of:
  • A
    $5L.$
  • B
    $15L.$
  • C
    $30L.$
  • ✓
    $50L.$
Answer
Correct option: D.
$50L.$
$50L.$
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MCQ 321 Mark
This method of irrigation can minimise wastage of water:
  • A
    Irrigation by pipes
  • ✓
    Irrigation by drip
  • C
    Irrigation by channels
  • D
    None of these
Answer
Correct option: B.
Irrigation by drip
Irrigation by drip can minimise wastage of water.
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MCQ 331 Mark
Which of the following is the reason for depletion of water table?
  • A
    Increasing population.
  • B
    Increasing industries.
  • C
    Deforestation.
  • ✓
    All of the above.
Answer
Correct option: D.
All of the above.
All of the above.
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MCQ 341 Mark
Which is not responsible for shortage:
  • A
    Rapid growth of industries.
  • B
    Increasing population.
  • C
    Heavy rainfall.
  • ✓
    Mismanagement of water resources.
Answer
Correct option: D.
Mismanagement of water resources.
Heavy rainfall is not responsible for shortage.
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MCQ 351 Mark
$95\%$ of the Earths water is stored in its:
  • A
    Glaciers
  • ✓
    Oceans
  • C
    Rivers
  • D
    Ponds
Answer
Correct option: B.
Oceans

$95\%$ of the Earth's water is stored in its oceans, from where the water cycle starts.

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MCQ 361 Mark
The traditional way of collecting water was:
  • ✓
    Bawaris
  • B
    Well
  • C
    Rivers
  • D
    None of these
Answer
Correct option: A.
Bawaris
Bawri were deep step wells built into the ground.
It was the traditional way of rainwater harvesting.
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MCQ 371 Mark
Water exists in:
  • ✓
    Three forms.
  • B
    Two forms.
  • C
    Five forms.
  • D
    No form.
Answer
Correct option: A.
Three forms.
Three forms.
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MCQ 381 Mark
On which day the world water day is celebrated?
  • A
    $23rd$ March
  • ✓
    $22nd$ March
  • C
    $22nd$ March
  • D
    None of these
Answer
Correct option: B.
$22nd$ March
$22nd$ March
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MCQ 391 Mark
Which year was observed as International Year of Fresh Water$?$
  • ✓
    $2003$
  • B
    $2004$
  • C
    $2006$
  • D
    $2002$
Answer
Correct option: A.
$2003$

Year $2003$ was observed as the International Year of Freshwater to make people aware of this dwindling natural resource.

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MCQ 401 Mark
Old wells are drying up because?
  • A
    Water is being pumped up from under the ground, with the help of electric motors.
  • B
    The lakes in which rain water used to collect are no longer there.
  • C
    The soil around trees and parks is now covered with cement.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
Old wells are drying up because water is being pumped up from under the grounds and since the lakes are no longer there, it can't be refilled.
Also, because of the cementing of soil around trees and parks, rainwater no longer reached underground.
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MCQ 411 Mark
“Every Drop Counts” is a slogan related to:
  • A
    Counting of drops of any liquid.
  • B
    Counting of water drops.
  • ✓
    Importance of water.
  • D
    Importance of counting.
Answer
Correct option: C.
Importance of water.
Every drop of water is precious for life to sustain on earth.
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MCQ 421 Mark
It may be possible that we are living in an area where there is sufficient rainfall and yet there is shortage of water, because of:
  • A
    Mismanagement of rainwater.
  • B
    Mismanagement of water at the individual level.
  • C
    Mismanagement of water $-$ by $-$ water supply department.
  • ✓
    All the above.
Answer
Correct option: D.
All the above.
All the above.
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MCQ 431 Mark
Water cycle does not involve which of the following?
  • A
    Evaporation.
  • B
    Condensation.
  • C
    Formation of clouds.
  • ✓
    Rainwater harvesting.
Answer
Correct option: D.
Rainwater harvesting.
Water cycle does not involve rainwater harvesting. Rainwater harvesting involves recharging the groundwater.
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MCQ 441 Mark
Water cycle does not involve which of the following?
  • A
    Evaporation.
  • B
    Condensation.
  • C
    Formation of clouds.
  • ✓
    Rainwater harvesting.
Answer
Correct option: D.
Rainwater harvesting.
Rainwater harvesting.
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MCQ 451 Mark
Earth appears blue because:
  • ✓
    $81\%$ of the earth’s surface is covered with water.
  • B
    $91\%$ of the earth’s surface is covered with water.
  • C
    $61\%$ of the earth’s surface is covered with water.
  • D
    None of these.
Answer
Correct option: A.
$81\%$ of the earth’s surface is covered with water.

Earth appears blue because $81\%$ of the earth’s surface is covered with water.

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MCQ 461 Mark
Earth appear blue from sky due to presence of:
  • A
    Desert
  • B
    Mountains
  • C
    Land
  • ✓
    Water
Answer
Correct option: D.
Water

The Earth has been blue for over $4$ billion years because of the liquid water on its surface.
There is only one known planet with permanent bodies of liquid water at its surface: ours.
Earth sciences allow us to explain why the Earth has almost always been blue: it's neither too warm nor too cold.

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MCQ 471 Mark
Out of the following which year is was observed as the International year of Fresh water.
  • A
    $2005$
  • ✓
    $2003$
  • C
    $2006$
  • D
    $2008$
Answer
Correct option: B.
$2003$
$2003$
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MCQ 481 Mark
Depletion of water table is due to:
  • A
    Increase in population.
  • B
    Industrial and Agricultural activities.
  • C
    Scanty rainfall.
  • ✓
    All of the above.
Answer
Correct option: D.
All of the above.
All of the above.
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MCQ 491 Mark
A man digging the ground near a water body found that the soil was moist. As he kept digging deeper and deeper he reached a level where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called
  • A
    Water level
  • ✓
    Water table
  • C
    Ground water
  • D
    Water limit
Answer
Correct option: B.
Water table
The upper limit of this layer where water is present between particles of soil and gaps between rocks is called water table and water below the layer is called groundwater.
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MCQ 501 Mark
Rainwater harvesting is one of the ways to conserve:
  • A
    Fresh water
  • B
    Sea water
  • C
    Potable water
  • ✓
    Rainwater
Answer
Correct option: D.
Rainwater
Rainwater
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MCQ (1 Marks) - Science STD 7 Questions - Vidyadip