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Science [ 2 Marks Questions ]

T3 CH4 Our Environment · Tamil Nadu Board STD 6 (Tamil - English Medium). 11 questions.

Questions

[ 2 Marks Questions ]

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11 questions · timed · auto-graded

Question 12 Marks
What happens to the dead organisms of animals and plants?
Answer
  1. They are broken down into simple organic substances by decomposers.
  2. These substances go into the soil and are used by plants.
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Question 32 Marks
What do plants need in order to photosynthesis?
Answer
Plants need chlorophyll, water, carbon-di-oxide, and sunlight.
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Question 42 Marks
What are called producers?
Answer
Producers are organisms that are able to produce their own organic food. (Eg) Plants.
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Question 62 Marks
See the diagram and answer the following question

What types of pollution are caused by open dumps?
Answer
The following types of pollution are caused by open dumps:-
  1. Water pollution
  2. Land pollution
  3. Air pollution
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Question 72 Marks
See the diagram and answer the following question

Explain what is happening in the picture?
Answer
  1. The atmosphere is polluted in this picture. It is due to the smoke rising from burning garbage.
  2. Land and water have been polluted because of leaching the toxins into the soil and water.
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Question 82 Marks
How can we reduce water pollution?
Answer
  1. Do not pour leftover oil, old medicines, or waste down the drain or into the toilet.
  2. Reduce the use of chemical pesticides and fertilizers to grow crops.
  3. Reduce the use of detergents and bleach to wash clothes.
  4. Do not litter or dump waste always use a waste bin.
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Question 92 Marks
What are the types of pollution?
Answer
There are four major kinds of pollution:
  1. Air Pollution.
  2. Water Pollution.
  3. Land (Soil) Pollution.
  4. Noise Pollution.
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Question 102 Marks
Identify who am I?
I am the type of pollution caused by burning of fossil fuels like petrol or coal and the smoke of burning garbage. I float around and cause breathing problems. I am _______ pollution.
Answer
I am the type of pollution caused by burning of fossil fuels like petrol or coal and the smoke of burning garbage. I float around and cause breathing problems. I am air pollution.
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Question 112 Marks
Think of the objects in your home. Just keep in mind, the books, toys, furniture, food materials, and even pets of your home. These living and non-living things together make your home. Look at the following picture and list out the living and non-living things, in the pond.
Image
Answer
Living things: Plants, Beetle, Mosquito, Larva, Water snake, Water scorpion, Snail, Fish, Duck, and Frog, etc.
Non- living things: Sun, Air, Water, Chemicals, Soil, Rocks and Temperature, etc.
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[ 2 Marks Questions ] - Science STD 6 Questions - Vidyadip