Download App

Pollution of Air and Water — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8SciencePollution of Air and Water1 Mark
MCQ
Study the given flow chart and identify $P, Q$ and $R.$
  • ✓
    $P -$ Livestock wastes, $Q -$ Styrofoam cup, $R - \text{DDT}$
  • B
    $P -$ Garbage, $Q - \text{BHC}, R -$ Aluminium cans,
  • C
    $P -$ Sewage sludge, $Q - \text{DDT}, R -$ Styrofoam cup
  • D
    $P -$ Livestock wastes, $Q - \text{BHC}, R - $Grocery
✓

Answer

Correct option: A.
$P -$ Livestock wastes, $Q -$ Styrofoam cup, $R - \text{DDT}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [I MARKS]" from Pollution of Air and Water→Pollution of Air and Water — all question types→Science STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

For a normal eye, in an adult, what is the least distance of distinct vision$?$
→
What is smog?
→
What kind of substances are known as lubricants.
→
Which feature of Earth protects it from harmful cosmic rays and solar wind?
→
Which is the nearest galaxy to our galaxy$?$
→
When air is passed through red hot coke, a gaseous fuel is produced. The name of this gaseous fuel and its composition are respectively.
→
Following is the data of four species $(S_1−S_4)$ present $(+)$ or absent $(-)$ in five different habitats $(P, Q, R, S$ and $T)$. Which species has the maximum diversity?
$\begin{matrix}&\text{P}&\text{Q}&\text{R}&\text{S}&\text{T}\\\text{S}_1&-&-&-&+&+\\\text{S}_2&-&-&-&-&-&\\\text{S}_3&-&-&-&-&+\\\text{S}_4&+&-&+&-&+\end{matrix}$
→
A Look at the figure given below.
Which of the following forces is necessary for a person to climb the mountain?
→
Which one among the following is incorrect about fertilisers$?$
$i.$ A fertiliser is a salt or an organic compound.
$ii.$ A fertiliser is obtained by the decomposition of animal wastes and plant residues.
$iii.$ A fertiliser provide a lot of humus to the soil.
$iv.$ Most of the fertilisers are soluble in water.
→
Which of the following is used as a reducing agent in the extraction of iron metal?
→