Environmental Studies Questions and Answers - Set 5 | Environmental Science Quiz GkSeries

1 Threshold of Security’ refers to the population level at which

1 Parasites damage the host body but do not cause immediate mortality

2 Predators no longer find it profitable to hunt for the prey species.

3 Functional response of the predator is very high

4 The balance between parasite and host is disturbed as the host produces antibodies.

View Answer

Answer: Predators no longer find it profitable to hunt for the prey species.

2 “Bermuda grass allergy” is a type of

1 Airborne allergy

2 Contact allergy

3 Hydroborne allergy

4 Soilborne allergy

View Answer

Answer: Airborne allergy

3 Parasites which initiate production of antibodies within hosts are termed as

1 Endoparasites

2 Pathogenic parasites

3 Zooparasites

4 Homoparasites

View Answer

Answer: Pathogenic parasites

4 Which of the following material is not easily broken down ?

1 Cellulose

2 Hemicellulose

3 Chitin

4 Amino acids

View Answer

Answer: Chitin

5 Melting of polar ice is expected to cover a sea level rise of approximately

1 10 metre

2 20 metre

3 60 metre

4 100 metre

View Answer

Answer: 60 metre

6 Pleistocene represents period of

1 Cold climate

2 Warm climate

3 Alteration of cold and warm climate with high proportion of cold period

4 Alteration of cold and warm climate with very high proportion of warm period

View Answer

Answer: Alteration of cold and warm climate with high proportion of cold period

7 GIS is applied to study

1 View shed analysis

2 Environmental Impact Assessment

3 Wildlife habitat analysis and migration routes planning

4 All of the above

View Answer

Answer: All of the above

8 Tectonic control in landscape evolution is manifested by

1 Tilted river terraces

2 Alluvial forms

3 Increased boulder proportions in the river belt

4 River meandering

View Answer

Answer: Tilted river terraces

9 Difference between mineral resource and reserve is

1 Reserve implies high degree of economic viability

2 Resource implies high degree of geological knowledge

3 Reserve implies high degree of economic viability and highdegree of geological knowledge

4 Resource implies high degree of economic viability and high degree of geological knowledge

View Answer

Answer: Reserve implies high degree of economic viability and highdegree degree of geological knowledge

10 Characteristic difference between two polar Ice Caps is

1 Arctic Ice Cap is on land

2 Antarctic Ice Cap is on land

3 Both are on land but Antarctic Ice Cap is thicker

4 Both are on sea but Arctic Ice Cap is thicker

View Answer

Answer: Antarctic Ice Cap is on land

11 Laterite represents

1 Regolith soil

2 Glacial soil

3 Black cotton soil

4 Red soil

View Answer

Answer: Regolith soil

12 In a whole-rock chemical analysis the dividing criterion between major and trace element on weight percent basis is

1 1 %

2 0.1 %

3 0.01 %

4 0.001 %

View Answer

Answer: 0.1 %

13 The mineral, most resistant to chemical weathering is

1 Olivine

2 Quartz

3 K-feldspar

4 Biotite

View Answer

Answer: Quartz

14 The El Nino disappears in March and re-appears in

1 May

2 August

3 October

4 December

View Answer

Answer: December

15 The elemental composition of earth’s crust in the descending order of weight percent is

1 Silicon > Aluminium > Iron > Calcium

2 Aluminium > Iron > Calcium > Silicon

3 Iron > Calcium > Silicon > Aluminium

4 Calcium > Silicon > Aluminium > Iron

View Answer

Answer: Silicon > Aluminium > Iron > Calcium

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