Download App

Environmental Issues — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYEnvironmental Issues1 Mark
MCQ
Among the following which one causes more indoor chemical pollution?
  • ✓
    Burning coal.
  • B
    Burning cooking gas.
  • C
    Burning mosquito coil.
  • D
    Room spray.
✓

Answer

Correct option: A.
Burning coal.
Burning of coal produces lot of carbon dioxide because solid fuel does not burn as efficiently as liquid or gaseous fuels.

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 (1 Marks)" from Environmental Issues→Environmental Issues — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Okazaki fragments are synthesised on:
→
Which group of vertebrates comprises the highest number of endangered species?
→
Which of the following transgenic human protein product has been used to treat emphysema?
→
Given below are two statements:

Statement $I:$ $RNA$ mutates at a faster rate.

Statement $II$: Viruses having RNA genome and shorter life span mutate and evolve faster.

In the light of the above statements, choose the correct answer from the options given below:

→
Smaller animals tend to lose body heat very fast as compared to larger animals because they have
→
Choose the incorrect statement.
→
Precipitates of purified $\text{DNA}$ after the addition of chilled ethanol can be seen as a collection of fine threads in suspension. This process is referred as $...........:$
→
The primates nearest to humans in the evolutionary line is
→
Asymptote in a logistic growth curve is obtained when
→
An inverted pyramid of biomass can be found in which ecosystem?
→