Study the picture given below and answer the following question: Name one pollutant that causes the above pollution.

The contamination of water bodies usually caused due to human activities is called water pollution. The causes of water pollution are domestic waste, industrial effluents, insecticides, pesticides and detergents, fertilizers. As these pollutants get mixed with the water the aquatic animals will not get sufficient oxygen gas for respiration which ultimately leads to the death of aquatic animals.

Study the picture given below and answer the following question: What is a ‘Pollutant’? Explain the term.

A pollutant can be defined as a substance introduced into the environment that has adverse effects. The causes of pollution are domestic waste, industrial effluents, insecticides, pesticides and detergents, fertilizers. There are different types of pollutants: Water Pollutants, Air Pollutants, Soil Pollutants, Noise Pollutants. All living organisms and ecosystem gets affected due to pollutants. They increase the earth’s temperature that causes global warming.

Study the picture given below and answer the following question: Identify the type of pollution.

The contamination of water bodies usually caused due to human activities is called water pollution. The type of pollution shown in the given image is water pollution. The causes of water pollution are domestic waste, industrial effluents, insecticides, pesticides and detergents, fertilizers. As these pollutants get mixed with the water the aquatic animals will not get sufficient oxygen gas for respiration which ultimately leads to the death of aquatic animals.

Study the picture given below and answer the following question: State one measure to control this pollution.

The contamination of water bodies usually caused due to human activities is called water pollution. The causes of water pollution are domestic waste, industrial effluents, urbanization, fertilizers. The steps to prevent water pollution are as follows: Trees or plants should be planted along the banks of rivers. Pollutants from industries should not be discharged into the water bodies.

Study the picture given below and answer the following question: Mention the impact of this pollution on human health.

The contamination of water bodies usually caused due to human activities is called water pollution. The causes of water pollution are domestic waste, industrial effluents, insecticides, pesticides and detergents, fertilizers. As these pollutants get mixed with the water the aquatic animals will not get sufficient oxygen gas for respiration which ultimately leads to the death of aquatic animals. In humans, consuming contaminated or polluted water causes typhoid, cholera, hepatitis and various other diseases.

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Earn 100

What is the definition of biomagnification?

Important Questions on Our Environment

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

At which trophic level, would the biological magnification of DDT would be highest.

Question Image

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

Give the causes of water pollution.

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

A case of bio-magnification was being studied. A laboratory received equal quantities of three samples M, N and O. The levels of pesticides found in these samples are as follows: M-1 mg, N-0.2 mg. O-3 mg. The samples M, N and O respectively could be:

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

If 20J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?
plant

\to

mice

\to

snake

\to

peacock

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Study the picture given below and answer the following question:

Question Image

Name one pollutant that causes the above pollution.

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

Which ONE of the following options lists the primary energy source(s) for all forms of life on earth?

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

Decide which of the following pair is not correct-

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

The tropic relationship is expressed in terms of numbers: biomass or energy arranged one on the top of its lower tropic level, resulting in a pyramidal shape. In case of a parasitic food chain. the pyramid number is _________

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Study the picture given below and answer the following question:

Question Image

What is a ‘Pollutant’? Explain the term.

MEDIUM

Science>Biology>Our Environment>Flow of Energy in Ecosystem

Study the picture given below and answer the following question:

Question Image

Identify the type of pollution.

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

Which of the following ecological pyramids is generally inverted?

EASY

Science>Biology>Our Environment>Flow of Energy in Ecosystem

Which one of the following statements is

NOT

correct?

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Which of the following statements is incorrect?

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Given below are two statements :
Statement I : The nutrient deficient water bodies lead to eutrophication.
Statement II : Eutrophication leads to decrease in the level of oxygen in the water bodies.
In the light of the above statements, choose the correct answer from the options given below :

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Which of the following statements is not correct?

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Describe an inverted pyramid of biomass with the help of an example.

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

How is the detritus food chain connected with the grazing food chain in a natural ecosystem?

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Study the picture given below and answer the following question:

Question Image

State one measure to control this pollution.

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Study the picture given below and answer the following question:

Question Image

Mention the impact of this pollution on human health.

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Science>Biology>Our Environment>Flow of Energy in Ecosystem

Which of the following statement(s) is (are)
incorrect reason for eutrophication?
(A) excess usage of fertilisers
(B) excess usage of detergents
(C) dense plant population in water bodies
(D) lack of nutrients in water bodies that prevent plant growth

Choose the most appropriate answer from the options given below :

What is the definition of biomagnification?

Important Questions on Our Environment

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