Environment and Ecology Selected Questions and Answers Set 1

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Q.1:- Give the name of one biodegradable pollutant ?

Ans:- Sewage

Q.2:- An organism which can monitor air pollution is ?

Ans:- Lichen

Q.3:- Is Nitrogen responsible for ‘Green House Effect’ ?

Ans:- No, it doesn’t come in green house gases.

Q.4:- An organism’s “trophic” level refers to ………….. ?

Ans:- what it eats

Q.5:- Wha is the term for the maximum number of individuals that an area can support indefinitely?

Ans:- carrying capacity

Q.6:- India would phase out the production and consumption of the controlled ODS (Ozone Depleting Substances) within the time frame and limits specified in the  ?

Ans:- Montreal Protocol

Q.7:- Ozone layer above the surface of Earth provides a shield against ?

Ans:- Ultra Violet Rays

Q.8:- Earth Summit was held in ?

Ans:- Rio De Jeneiro

Q.9:- Gas released during Bhopal tragedy was ?

Ans:- Methyl Isocyanate (MIC)

Q.10:- An artificial ecosystem is represented by ?

Ans:- Aquarium

Q.11:- Red data book gives information about species which are ?

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Ans:- Endangered

Q.12:- Composting is one of the oldest forms of disposal of waste. It is the natural process of decomposition of organic waste that yields manure or compost. One of the following is added to the compost to get better results.

(a) Bugs (b) Ants (c) Worms (d) Snakes

Ans: (d) Snakes

Q.13:- A poisonous substance is produced in the spores of a fungal mould ( Aspergillus Flavus ) that grows naturally on peanuts and grains. If ingested it can damage the immune system, cause liver cancer and is also mutagenic inducing chromosomal damage in a wide range of animals. Give the name of the toxin ?

Ans:- Aflatoxin

Q.14:- SPM stands for ?

Ans:- Suspended Particulate Matter

Q.15:- The Gir forest was declared a protected area to ensure the safety of this animal and to protect its last habitat. The Gir Forest in Gujarat is famous for ?

Ans:- Lion

Q.16:- Om whitetail deer populations in Michigan, individuals most often show a ……………….. Pattern of dispersion.

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Ans:- Random

Q.17:- The concentration of pollutants in atmosphere are generally expressed in ?

Ans:- parts per million

Q.18:- The deciduous trees will ?

Ans:- shed their leaves every year

Q.19:- Nitric oxide pollution can lead to all of the following except

(a) leaf spotting in plants

(b) bronchitis related respiratory problems in human

(c) production of corrosive gases

(d) silicosis in human

Ans:- (b) bronchitis related respiratory problems in human

Q.20:- What is the name of the French plan designed to bring about a 50% reduction in the use of pesticides within 10 years?

Ans:- The “Eco-phyto” Plan

Q.21:- The green house effect refers to ?

Ans:- Gradual warming of the earth’s surface

Q.22:- The niche of an animal is best defined as ?

Ans:- The specific place within the habitat where the animal lives

Q.23:- Which creature is featured on the logo for International Year of Biodiversity 2010 ?

Ans:- A greater Flamingo

Q.24:- Which of the following a primary consumer ?

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(a) Cow      (b) Dog              (c) Hawk    (d) Bear

Ans:- Cow

Q.25:- When did the last female Alpine ibex disappear in France ?

Ans:- 2000