Morning Star solutions for टोटल जियोग्राफी [अंग्रेजी] कक्षा ९ आईसीएसई chapter 18 - Effects of Pollution [Latest edition]

What is the effect of 150 dB of noise?

Birds avoid migrating to places where noise level is above ______.

The process of depletion of oxygen from water bodies occurring either naturally or due to human activities is called ______.

The increase in the concentration of various toxic substances along the food chain is called ______.

The phenonenon of concentrated toxic deposition at the higher trophic level is known as ______.

Name the disease which resulted in numbness of body parts, vision and hearing problems and abnormal mental behaviour in Japan.

In Japan, pollution by heavy metal, cadmium, caused the disease called ______.

Which disease causes discolouring of dental enamel and black and brown stains on the teeth?

The Municipal Corporation of your city has banned all construction activities from 5 pm to 9 am. Why?

Assertion (A): Birds avoid migrating to places where noise level is above 100 dB.

Reason (R): Doctors and scientists have now medically confirmed that noise disturbs living organisms.

Given below are scenes, list the pollutants generated by each. How does each pollutant affect (i) environment; (ii) humans and other living beings; and (iii) materials?

How does noise pollution affect animals?

What major harm is done to the human beings by air pollution?

How are animals affected by air pollution?

What is the effect of oil spills on marine life?

What causes waterborne diseases? 

In what way does soil pollution affect human beings?

A landfill was reclaimed and sturdy plants were grown on it instead of crops or fruit trees. Why?

Give the impact of radiations on the human body.

Why are nuclear radiations more dangerous than other forms of pollution?

Crude oil from a refinery has leaked into the Kosasthalaiyar river (north of Chennai), the biodiverse Ennore creek (where many migratory birds come) and the Bay of Bengal. This has caused pollution. List what all could have been impacted and how?

State briefly how is noise pollution detrimental to human health.

How does air pollution affect human beings?

Explain how the accumulation of nutrients and chemicals in the water proves fatal for marine organisms.

With the help of a well labelled diagram explain how the accumulation of toxic substances increases as we move up the food chain.

State any two effects of soil pollution on human beings.

State any two effects of soil pollution on the environment.

Name three common air pollutants.

Give the effects of air pollutants on human health.

What are pathogens?

How do pathogens enter human body?

Name any three diseases caused by pathogens.

State with examples the effects of radiations on the human beings.

State with examples the effects of radiations on the environment.

The apparent lack of concern for the effects of pollution seems to be the reason for not implementing plans to prevent pollution. Justify this statement with examples.

Which is the most visible affect of pollution on human beings in your city? What are the causes and possible remedies?

Northern India is enveloped in smog in the month of November. List the causes for the same.