Agrochemical And Their Effects Test
Agrochemical And Their Effects
This is online test 01 for CBSE class 12 Biology Environmental Issues (Agrochemical and their effects).. There are 10 questions in this test with each question having around four answer choices.
Questions & Answers
1
All are biofuels except:
- Abiodiesel
- Bethanol
- Cmarsh gas
- DbiopetrolCorrect
2
Mass destruction of aquatic life will be caused by:
- ANarrow spectrum pesticides
- BBroad spectrum pesticidesCorrect
- CEutrophication
- DSecondary pollutants from anaerobic bacteria
3
Using the same land for farming, forestry as well as animal husbandry will be called :
- Arural forestry
- Breserve forestry
- CagroforestryCorrect
- Dcomposite forestry
4
Soil pollution : i. can be of two types- positive and negative ii. soil erosion is an example of positive soil pollution
- Aboth the statements are wrong
- BStatement i) is correct but ii) is wrongCorrect
- Cboth the statements are correct
- DStatement ii) is correct but i) is wrong
5
There are two types of ozone i. Good ozone and bad ozone. ii. Good ozone is present in stratosphere while bad ozone is present in troposphere.
- AStatement ii) is correct but i) is wrongBoth the statements are wrong
- BStatement ii) is correct but i) is wrong
- Cboth the statements are correct Statement i) is correct but ii) is wrong
- DBoth the statements are correct.Correct
6
The biological amplification of DDT in the various trophic levels is known as
- APollution
- BBiomagnificationsCorrect
- CEutrophication
- DGreen house effect
7
Spraying of DDT produces pollution of
- AAir, water and soil.Correct
- BAir
- CAir and soil
- DAir and water
8
A gas produced by paddy fields and involved in global warming is
- AChlorine
- BCarbon dioxide
- CMethaneCorrect
- DSulphur dioxide gas
9
Which one is most toxic
- ACarbon dioxide
- BCarbon monoxideCorrect
- CSulphur dioxide
- DCarbon
10
DDT is a
- ANone of these
- BGreen house gas
- CNon-biodegradable pollutant.Correct
- DDegradable pollutant.