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Earn 100

The slogan “global warming” was given by

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Important Questions on Our Environment

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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
The highest DDT concentration in aquatic food chain shall occur in
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Chlorofluorocarbons (CFCs) are believed to be associated with cancers because:
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Montreal protocol was signed in 1987 for control of
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Snow-blindness in Antarctic region is due to
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Which, among grass, goat, tiger and vulture, in a food chain, will have the maximum concentration of harmful chemicals in its body due to contamination of pesticides in the soil?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Which one of the following human activities has contributed as deforestation by northeastern sides of India?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
An increase in the concentration of the toxicant at successive trophic levels is known as:
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
CO2 acts as a greenhouse gas because:
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Which one of the following is a wrong statement?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem

Match the following:

  List - 1   List -2
A) Carbon monoxide I) Global warming
B) Carbon dioxide II) UV - rays
C) Sulphur dioxide III) Eutrophication
D) Ozone depletion IV) Acid rain
    V) Oxygen transport

The correct match is

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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
The biomagnification of which pollutant causes a decline in the bird population?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
The zone of atmosphere in which the ozone layer is:
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Snow blindness is caused due to
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
The maximum concentration of harmful chemicals is expected to be found in organisms
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
In an area where DDT has been used extensively, the population of birds declined significantly because -
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
MEDIUM
Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
How is green house gas raise the temperature of Earth?
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Science>Biology>Our Environment>Effects of Human Activities on Ecosystem
Which of the following pairs of gases is mainly responsible for green house effect?