Which of the following would most likely help to slow down the greenhouse effect.

(a)

Converting tropical forests into grazing land for cattle.

(b)

Ensuring that all excess paper packaging is buried to ashes.

(c)

Redesigning landfill dumps to allow methane to be collected.

(d)

Promoting the use of private rather than public transport.

Find the wrongly matched pair.

(a)

Endemism - Species confined to a region and not found anywhere else.

(b)

Hotspots - Western ghats

(c)

Ex-situ Conservation - Zoological parks

(d)

Sacred groves - Saintri hills of Rajasthan

(e)

Alien sp. Of India - Water hyacinth

One green house gas contributes 14% of total global warming and another contributes 6%. These are respectively identified as _____.

(a)

N₂O and CO₂

(b)

CFCs and N₂O

(c)

CH₄ and CO₂

(d)

CH₄ and CFCS

Deforestation means ______.

(a)

growing plants and trees in an area where there is no forest

(b)

growing plants and trees in an area where the forest is removed

(c)

growing plants and trees in a pond

(d)

Removal of plants and trees

___________ is not a method of waste water treatment.

(a)

oxidation ponds

(b)

Anaerobic lagoons

(c)

Catalytic converter

(d)

Anaerobic bioreactor

Identify the incorrect statement with regard to Global warming

(a)

Leads to species enrichment

(b)

Decrease irrigation

(c)

Increases vector population 

(d)

Frequent heat waves

Methane is ________________ times as effective as CO₂ at trapping heat.

(a)

5

(b)

10

(c)

20

(d)

100

Total number of forestry extension centres in Tamil Nadu is ______________

(a)

16

(b)

32

(c)

18

(d)

51

Which is not true with respect to prosopis julifiora?

(a)

Invasive species native to Mexico

(b)

Arrest wind erosion

(c)

Absorb hazardous chemical from soil

(d)

Decreases O₂ content of water bodies

EIA stands for ________________

(a)

Ecological Information Analysis

(b)

Environmental Information Assessment

(c)

Environmental Impact Analysis

(d)

Environmental Impact Assessment