Lakhmir Singh solutions for बायोलॉजी [इंग्रजी] इयत्ता १० आईसीएसई chapter 16 - Pollution [Latest edition]

True or False.

Wind decreases the amount of dust particles in the air.

True or False.

Tall chimneys fitted with filters help to reduce air pollution.

True or False.

Location of factories near residential areas reduces air pollution in cities.

True or False.

SO₂ is responsible for acid rain.

Depletion of ______ layer allows ultraviolet rays to reach earth easily.

______ is due to the greenhouse effect.

Automobiles using diesel and petroleum are the major sources of ______ which gets added to the atmosphere.

Suspended fine particles in the air are known as ______.

Ozone depletion is caused due to increase in the level of ______.

What type of chemical weathering is enhanced by acid rain?

Water is safe for human consumption only when it is free of:

Domestic waste causes water pollution by discharging:

Washing clothes near a water source is harmful because the dirt and soap released:

True or False.

Eutrophication is caused due to too many fertilisers added to the soil during farming activities.

True or False.

The main cause of water pollution is aerosol.

This is the latest technology in reducing garbage that causes soil pollution

Harmful chemicals are left in the soil by:

______ of the soil pollutants are carcinogenic in nature.

Fly ash, chemical residues, ______ and ______ causes soil pollution.

______ is caused by salt accumulation in the soil.

Find out about the following nuclear radiation disaster that shook the whole world.

Chernobyl, Ukraine (former Soviet Union), 26 April 1986.

Find out about the following nuclear radiation disaster that shook the whole world.

Fukushima, Japan, March 2011

Choose the Correct Answer:

From the following, select which lead to noise pollution:

1. Blowing horns on the roads.
2. Loudspeakers playing wedding songs.
3. Talking to a friend.
4. Arrival of a train on the platform.
5. A motor bike going at a fast speed.
6. Playing soft music in a room.
7. Bursting of firecrackers.
8. Running a grinding machine.
9. An aeroplane taking off at the airport.
10. Laughing loudly.

Plastic takes ______ years to decompose.

The main of ______ campaign was to stop open defaecation in rural area.

______ standards have been instituted by the Central Pollution Control Board (CPCB).

______ is a programme started to replenish the forests by growing more trees and plants.

True or False.

Radiation is the discharge of heated effluents from industrial processes.

True or False.

Thermal damages are of two types.

True or False.

Kulhads or paper cups are biodegradable products.

True or False.

Organic farming aims at practice of zero-waste procedure.

True or False.

Rapid growth of algae on the surface of water is known as algal bloom.

True or False.

SO₂, CO₂ and nitrogen oxides are polluting gases.

True or False.

Infrared radiations are absorbed by oxygen.

True or False.

Smog causes breathing difficulties.

True or False.

Soil pollution leads to water pollution.

True or False.

Corrosion of marble is known as marble cancer.

Fill in the blanks with the help of words given in bracket after the sentence.

When air is contaminated by ______ substances which have a ______ effect on both the ______ and ______ it is referred to as______.

(air pollution, harmful, living, unwanted, non-living, pollutants)

Fill in the blanks with the help of words given in bracket after the sentence.

Many ______ are responsible for causing ______ pollution. Petroleum ______ are a major source of ______ pollutants like ______ and ______.

(sulphur dioxide, refineries, industries, nitrogen dioxide, gaseous, liquid, people, air)

Fill in the blanks with the help of words given in bracket after the sentence.

While ______ your teeth, leaving the ______ running may waste several ______ of water.

(tap, litres, brushing, washing, drops)

Fill in the blanks with the help of words given in bracket after the sentence.

Water which is suitable for ______ is called ______ water.

(washing, bathing, drinking, potable, soft)

Fill in the blanks with the help of words given in bracket after the sentence.

Water which looks clean still has disease carrying ______ and ______ impurities.

(insects, microorganisms, particles, dissolved, harmful)

Match the Following:

Give One Word Answer:

Term for enrichment of water bodies with nutrients coming from fields.

Give One Word Answer:

Chemicals used in refrigerators and air conditioners and responsible for ozone hole.

Give One Word Answer:

Mass cultivation of trees to increase forest area.

Give One Word Answer:

Substances that easily decompose.

Give One Word Answer:

Undesirable material in the environment.

Which of the following gas affects human health by reducing the blood's ability to carry oxygen to different parts of the body?

The best way to dispose plant waste is ______.

Which of the following is not one of the major environment problems resulting from human interference in the nitrogen cycle?

Which of the following units is used to measure the intensity of noise?

The main source of water pollution is ______.

Which of the following ultimately causes oxygen depletion in water bodies?

Depletion of ozone layer leads to ______.

Excessive exposure of humans to UV-rays results in ______.

Which of these is a greenhouse gas?

The manufacturing of chlorofluorocarbon-free refrigerators helps prevent ozone depletion as:

An environment friendly practice is ______.

Which one of the following is a Greenhouse gas?

Identify the ODD term in the set and name the CATEGORY to which the remaining three belong.

Syringes, Soiled dressings, Discarded needles, Household detergents.

Identify the ODD term in the set and name the CATEGORY to which the remaining three belong.

Polythene bag, Crop residue, Animal waste, Decaying vegetables.

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

Detergents, X-rays, sewage, oil spills

Define the following term:

Pollution

Define the following term: Pollutant

Define the term:

Soil pollution

Define the following term:

Biomagnification

What are the types of pollution?

List sources of noise pollution in your surroundings.

Why was CNG introduced as a fuel for automobiles in a city like Delhi? Has it made any difference?

Chemical fertilisers are useful to crops. In which way they cause environmental pollution?

Name one effect on plants and one on human caused by excess SO₂ in the air.

Give two examples of natural sources of water pollution.

Why are plastic bags a big environmental nuisance?

Vermicomposting degrades organic waste into a useful substance. What is this substance used for?

Mention the sources of sulphur compound pollutants? What are the harmful effects that passed on to environment by those pollutant materials?

Which type of radiations are produced in a microwave oven?

How are we affected by thermal pollution?

Give suitable biological reasons for the following statement:

Water pollution is a major cause of concern in our country.

Give suitable biological reasons for the following statement : 
 Acid rain is harmful to the environment. 

Differentiate between the Following:

Biological magnification and Eutrophication

Distinguish between the following :
Biodegradable and Non-biodegradable Pollutants

Differentiate between the Following:

Acid rain and Greenhouse gases

Differentiate between the Following:

Sewage and Industrial waste

Differentiate between the Following:

Sun radiation and Nuclear radiation

Explain four major air pollutants and their consequences.

Discuss the measure used for controlling air pollution.

Write a short note on acid rain.

What do you mean by water pollution ?

Suggest various remedial and control measures to minimise water pollution.

Briefly describe soil pollution, its causes and methods of control.

Name and discuss their contribution to global warming. What can be the effects of global warming? What are the remedial measures?

What are the causes and effects of thermal pollution on the life of aquatic animals like fish?

What measures you would suggest to prevent thermal pollution?

List the possible damages caused to humans by radiation pollution.

We should plant trees and nurture the ones already present in the neighbourhood. Why?

The quality of air at various locations is monitored regularly by government and other agencies. In what way can you use these data?

Discuss:

Euro Bharat vehicular standards

Discuss:

Swachh Bharat Abhiyan

Discuss:

Plastic pollution

Complete the figure given below. Label the pictures and then fill the chart:

Stand at the gate of your school, close your eyes and listen to the various sounds produced in your environment. List down the pleasant and the unpleasant sounds. Suggest some ways to reduce sounds that you would call noise.

Read the paragraph and answer the questions following it.

1. How do you classify the various sources of water pollution?
2. What are the point sources of water pollution?
3. Name any two non-point sources of water pollution?

Do research on air pollution of four cities in India and four cities around the other continents. Tabulate your findings according to the highest percentage of air pollution. Make notes on India's progress to control of air pollution. Also find the technologies used by other countries to improve air quality.

With the help of your teacher or any elder, write an article (of your air pollution research) to be published in a renowned newspaper or school magazine.

Arunima Pal, a student of Class IX, wrote a poem for her school magazine to create an awareness amongst students.

1. What sentiments of the child is reflected here? Do you also feel the same kind of emotions on this topic?
2. Find the rhyme scheme of the poem.
3. Analyse and write the meanings of these sentences:
   1. Leaders started having talks, And conducted nature walks.
   2. Death stared us in the face, But we could still save the human race.
4. Express your feelings by writing a similar poem or an article and publish it in a renowned magazine.