Given below are two statements:Statement I: Chronic toxic effects result from a single dose of a very high toxic substance or continuous exposure to a sub-lethal dose.Statement II: Acute toxic effects are long-lasting and irreversible mainly caused due to prolonged exposure to toxins and the survival rate is very low.In the light of the above statements, choose the correct answer from the options given below:

Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is correct but Statement II is false

Statement I is incorrect but Statement II is true

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A): Emissions from diesel vehicles are relatively less harmful to human health in comparison to petrol vehicles. Reason (R): Emissions of hydrocarbons and carbon monoxide are inherently very low from diesel vehicles. In the light of the above statements. choose the most appropriate answer from the options given below:

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Both (A) and (R) are correct but (R) is NOT the correct explanation of (A)

(A) is correct but (R) is not correct

(A) is not correct but (R) is correct

Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

Both Statement I and Statement II are false

Statement I is correct but Statement II is false

Statement I is incorrect but Statement II is true

1.	Blue-baby syndrome can happen due to the excess of which component in the water?
A.	Calcium
B.	Magnesium
C.	Nitrates
D.	Pesticides
Answer» D. Pesticides

2.	Given below are two statements:Statement I: Chronic toxic effects result from a single dose of a very high toxic substance or continuous exposure to a sub-lethal dose.Statement II: Acute toxic effects are long-lasting and irreversible mainly caused due to prolonged exposure to toxins and the survival rate is very low.In the light of the above statements, choose the correct answer from the options given below:
A.	Both Statement I and Statement II are true
B.	Both Statement I and Statement II are false
C.	Statement I is correct but Statement II is false
D.	Statement I is incorrect but Statement II is true
Answer» D. Statement I is incorrect but Statement II is true

3.	In case of which of the following primary pollutants, the man-made contributions to global emissions (million tonnes per year) is more compared to that from natural sources?
A.	Sulphur dioxide
B.	Nitric oxide
C.	Methane
D.	Carbon dioxide
Answer» E.

4.	High level lead (Pb) exposures in humans through inhalations or food consumption may cause:1) Mental retardation2) High blood pressure3) Disorder of central nervous systemSelect the correct answer from the code given below:
A.	1 and 2 only
B.	2 and 3 only
C.	3 and 1 only
D.	1, 2 and 3
Answer» E.

5.	Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) : Assertion (A): Emissions from diesel vehicles are relatively less harmful to human health in comparison to petrol vehicles. Reason (R): Emissions of hydrocarbons and carbon monoxide are inherently very low from diesel vehicles. In the light of the above statements. choose the most appropriate answer from the options given below:
A.	Both (A) and (R) are correct and (R) is the correct explanation of (A)
B.	Both (A) and (R) are correct but (R) is NOT the correct explanation of (A)
C.	(A) is correct but (R) is not correct
D.	(A) is not correct but (R) is correct
Answer» E.

6.	Given below are two statements:Statement I: Sunlight is a pre-requisite for the formation of photochemical smog in urban areas.Statement II: Photochemical smog is a recurring phenomenon in winter and summer seasons in urban areas of India.In the light of the above statements , choose the most appropriate answer from the options given below:
A.	Both Statement I and Statement II are true
B.	Both Statement I and Statement II are false
C.	Statement I is correct but Statement II is false
D.	Statement I is incorrect but Statement II is true
Answer» D. Statement I is incorrect but Statement II is true

7.	Match List I with List IIList IList IIEmitted PollutantsEnvironmental ImpactA. Carbon dioxideI. Formation of acid rainB. Carbon monoxideII. Toxic and are carcinogenicC. Nitrogen oxidesIII. Toxic and can causerespiratory diseasesD. Benzene andhydrocarbonIV. Contribution to global warmingas a Greenhouse gas Choose the Correct Answer from the option given below:
A.	A - IV, B - III, C - I, D - II
B.	A - IV, B - II, C - I, D - III
C.	A - IV, B - II, C - III, D - I
D.	A - I, B - III, C - II, D - IV
Answer» B. A - IV, B - II, C - I, D - III

8.	“Farmer’s lung disease” is due to
A.	Pollen grains
B.	Smoke
C.	Mouldy hay
D.	Mouldy sugarcane
Answer» D. Mouldy sugarcane