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12th Biology Monthly Test - 1 ( Botany - Environmental Issues )

St. Britto Hr. Sec. School - Madurai

12th Biology Monthly Test - 1 ( Botany - Environmental Issues )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Plant indicators also referred as

Chemical indicators
Oxygen indicators
Biological indicators
Environmental indicators

Which of the following is normally not an atmospheric pollutant

CO
SO₂
CO₂
Hydrocarbons

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

Deforestation does not lead to

Quick nutrient cycling
soil erosion
alternation of local weather conditions
Destruction of natural habitat weather conditions

People’s movement for the protection of environment in Sirsi of Karnataka is

Chipko movement
Amirtha Devi Bishwas movement
Appiko movement
None of the above

_____________ has single - handedly planted a forest in the middle of a barren wasteland.

Jawaharlal Nehru
Jadav "Molai'' Payeng
Sundarlal Bahuguna
Panduranga Hegde

There are ______________ megacentres of endemism.

3
4
7
6

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

Ammonia
Methane
Nitrous oxide
Ozone

_____________ is the most damaging type of UV radiation.

UV A
UV B
UV C
UV II

Find the wrongly matched pair.

Endemism - -Species confined to a region and not found anywhere else.
Hotspots - Western ghats
Ex-situ - Zoological parks
Alien sp. oflndia -Water hyacinth

Tree cultivation in private lands was implemented in the state from

2007-08 to 2011
2004-05 to 2010
2002-03 to 2011
2008-09 to 2012

The unit for measuring ozone thickness

Joule
Kilos
Dobson
Watt

Aforestation means.

Planting of trees
Removal ofTreas and Plants
Conversion of forest area into non forest area
Supplying of seedlings

The plants which are grown in silivpasture system are

Sesbania and Acacia
Solenum and Crotalaria
Clitoria and Begonia
Teak and sandal

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

Converting tropical forests into grazing land for cattle.
Ensuring that all excess paper packaging is buried to ashes.
Redesigning landfill dumps to allow methane to be collected.
Promoting the use of private rather than public transport.

Part - B

Generic 2 - Answer All Question

What is an Ozone Shield?

What is Rio-magnification?

What is ozone hole?

Write the names of Important lakes in and around chennai.

What is a Social forestry?

What is global warming?

Write the expansion of CDM.
Write any two effects of global warming?

Write the three stages involved in Sewage Treatment.

What are Plant Indicators?

What are endemic species?

Give an example of plants, cultivated in commercial agroforestry.

Write any two effects of global warming on plants.

What are green house gases?

Define the term "Algal bloom".

What is GIS and write its expansion?

Part - C

Generic 3 - Answer All Question

Name the methods of solid waste management.

Writ e a short note on Bio monitoring.

How can Bio-diversity impacts be assessed?

How is the spread of Lantana being controlled?

Write the benefits of EIA to society.

What is in-situ conservation?
What are the advantages of biochar for the plants?

What is geological sequestration?

How do forests help in maintaining the climate?

How do sacred groves help in the conservation of biodiversity?

Explain afforestation with case studies.

Part - D

Generic 5 - Answer All Question

Write the effects of deforestation.

Write the main objectives of Afforestation.

Suggest a solution to water crisis and explain its advantages.
Write a note on carbon foot print.

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

What is a invasive species? Explain with an example.

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