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12th Biology Monthly Test - 2 ( Botany - Environmental Issues )

St. Britto Hr. Sec. School - Madurai

12th Biology Monthly Test - 2 ( Botany - Environmental Issues )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Lichens are useful in the studies of atmospheric pollution because they

can grow is greatly polluted atmosphere
can readily multiply in polluted atmosphere
Effectively purify the atmosphere
very sensitive to pollutants

One of the chief reasons among the following for the depletion in the number of species making endangered is

over hunting and poaching
green house effect
competition and predation
Habitat destruction

The unit for measuring ozone thickness

Joule
Kilos
Dobson
Watt

Find the wrongly matched pair.

Endemism - Species confined to a region and not found anywhere else.
Hotspots - Western ghats
Ex-situ Conservation - Zoological parks
Sacred groves - Saintri hills of Rajasthan
Alien sp. Of India - Water hyacinth

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancer?

Ammonia
Methane
Nitrous oxide
Ozone

____________is not helpful in carbon sequestration.

Chlamydomonas
Rhizobium
Cinnamomum
Chlorella

The main atmospheric layer near the surface of earth is

Troposphere
Mesophere
Ionosphere
stratosphere

Montreal protocol was based on________________

CDM
Carbon sequestration
Ozone depletion
Global warming

Deforestation means

growing plants and trees in an area where there is no forest
growing plants and trees in an area where the forest is removed
growing plants and trees in a pond
removal of plants and trees

One of the chief reasons among the following for the depletion in the number of species making endangered is

over hunting and poaching
green house effect
competition and predation
habitat destruction

Ginkgo biloba belongs to ______________category.

EX
CR
EW
LC

Plant indicators also referred as

Chemical indicators
Oxygen indicators
Biological indicators
Environmental indicators

TAP stands for

Tamil Nadu Administration Project
Tamil Nadu Achievement Project
Tamil Nadu Afforestation Project
Tamil Nadu Agrochemical Project

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

N₂O and CO₂
CFC_s and N₂O
CH₄and CO₂
CH₄ and CFCS

The unit for measuring ozone thickness

Joule
Kilos
Dobson
Watt

Part - B

Generic 2 - Answer All Question

Write the three stages involved in Sewage Treatment.

What is Rio-magnification?

What are green house gases?

What are endemic species?

Expand CFP.
What are the uses of Remote Sensing?

Define the term "Algal bloom".

What are the sources of green house gases emission?

Part - C

Generic 3 - Answer All Question

What are the ill effects of Parthenium?

Which one gas is most abundant out of the four commonest greenhouse gases? Discuss the effect of this gas on the growth of plants?

Write the benefits of EIA to society.

What is the impact of Eicchornia on water bodies?

What is the purpose of IUCN Red list?

What is invasive species?

List the negative impact of agrochemicals.
How is the spread of Lantana being controlled?

Part - D

Generic 5 - Answer All Question

Write the effects of ozone depletion.

List the effects of global warming on plants.
Mention strategies to deal with the issue.

Explain afforestation with case studies.
Write a note on carbon foot print.

Write a note on Agro forestry.

Suggest a solution to water crisis and explain its advantages.

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