Introduction of Environmental Science-Earth, Man and Environment (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 2 of 2

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 376 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 1

» Introduction of Environmental Science » Earth, Man and Environment

Appeared in Year: 2011

Assertion-Reason▾

Assertion (Ꭺ)

Available data suggest that the first cells on earth were anaerobic heterotrophs. (December)

Reason (Ꭱ)

In the beginning, the earth’s atmosphere probably lacked free oxygen.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

Question number: 2

» Introduction of Environmental Science » Earth, Man and Environment

Appeared in Year: 2009

MCQ▾

Question

Comparing continental and oceanic crust – (December)

Choices

Choice (4) Response

a.

The chemical composition of crust does not vary.

b.

The Fe content in continental crust is more than that of oceanic crust.

c.

The Na, Ca, Al content in oceanic crust is more than that of continental crust.

d.

The Si and Al content in continental crust is more than that of oceanic crust.

Sign In