CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III): Questions 336 - 340 of 376

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Question number: 336

» Basics of Environmental Geosciences » Mineral Resources and Environment » Processing and Smelting of Minerals

MCQ▾

Question

Formation of marble can be represented by – (December)

Choices

Choice (4) Response

a.

CaCO3+SiO2CaSiO3+CO2

b.

CaSiO3Ca+2+SiO32

c.

CaCO3CaO+CO2

d.

CaO+CO2CaCO3

Question number: 337

» Basics of Environmental Geosciences » Remote Sensing » Principles of Remote Sensing

Appeared in Year: 2011

MCQ▾

Question

Given below are scales of four topographic maps. Maps of which scale will have more clarity? – (December)

Choices

Choice (4) Response

a.

1: 25, 000

b.

1: 250, 000

c.

1: 50, 000

d.

1: 1, 000, 000

Question number: 338

» Statistical Analysis » Arithmetic, Geometric and Harmonic Means

Appeared in Year: 2011

MCQ▾

Question

For any finite set of positive numbers, which is the correct relationship involving Harmonic Mean (HM), Geometric Mean (GM) and Arithmetic Mean (AM)? – (December)

Choices

Choice (4) Response

a.

AM ≤ GM ≤ HM

b.

HM ≤ GM ≤ AM

c.

GM ≤ HM ≤ AM

d.

AM ≤ HM ≤ GM

Question number: 339

» Introduction of Environmental Science » Sustainable Development

Appeared in Year: 2011

MCQ▾

Question

What are the steps necessary for sustainable management of renewable resources? – (December)

Choices

Choice (4) Response

a.

Avoiding over-exploitation and pollution of biotic systems.

b.

Strengthening the resource base and augmenting regenerability of biotic systems.

c.

Use of alternative resources.

d.

All a. , b. and c. are correct

Question number: 340

» Energy Resources » Fossil Fuels » Coal

Appeared in Year: 2011

MCQ▾

Question

Chemically coal is composed of

(i) Carbon (ii) Hydrogen (iii) Oxygen (iv) Sulphur and/or Nitrogen – (December)

Choices

Choice (4) Response

a.

Only (i) and (ii)

b.

Only (i), (ii) and (iii)

c.

Only (i), (ii) and (iv)

d.

All a. , b. and c. are correct

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