Given below are two statements. In the light of the above statements, choose the correct answer from the options given below.

Statement I:The concentration of volatile organic chemicals is generally 100 to 1000 times higher in surface water than in underground water.

Statement II:The most common method of treatment of volatile organic chemicals is to aerate them to the atmosphere.

ABoth Statement I and Statement II are true

BBoth Statement I and Statement II are false

CStatement I is true but Statement II is false

DStatement I is false but Statement II is true ✓ Correct

Correct answer: (D) Statement I is false but Statement II is true

Explanation

Volatile organic chemicals actually build up more in underground water than in open surface water.

In surface water they escape readily into the air, keeping their levels comparatively low.

Statement 1 reversing this by claiming higher levels in surface water is false.

Aeration, or air stripping, is indeed the most common way to treat such volatile chemicals.

Statement 2 about aerating them into the atmosphere is accurate.

Air stripping works because these compounds pass easily from water into the air.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.