Chapter:

Principles-of-Inheritance-and-Variation

1. Match columns and choose correct options.
I II
(p) e waste (i) Waste clothing
(q) Biodegradable waste (ii) Dirt
(r) Inert waste (iii) Green waste
(s) Composite waste (iv) Irreparable waste

p-i, q-ii, r-iv, s-iii p-iv, q-iii, r-ii, s-i p-iii, q-iv, r-i, s-ii p-iv, q-iii, r-i, s-ii

Hint Answer

2. If river water is polluted with domestic sewage and garbage, it leads to depletion of

_{2}

CO O

_{2}

All of the above

Hint Answer

3. Afforestation in relation to urban development is component of

Afforestation is process of planting trees, or sowing seeds, in a barren land devoid of any trees to create a forest. The term should not be confused with reforestation, which is process of specifically planting native trees into a forest that has decreasing numbers of trees.
Hence Afforestation in relation to urban(cities) development is a component of Integrated forest development.
So, correct answer is 'Integrated forest development'.

Biochemical Oxygen Demand (BOD) is oxygen in milligrams required for 5 days in one litre of water at 20 degree centigrade for micro organisms to metabolise organic wastes present in water.

These are smaller size particles that can easily pass through all filters hence said as dissolved materials. They contain various nutrients like ammonia, calcium, nitrate, phosphate, and sodium.

Lead is an elemental heavy metal found naturally in environment as well as manufactured products. Lead can be directly released into air, as suspended particles. Humans may be exposed to lead from air pollution directly, through inhalation or through incidental ingestion of lead that settles out from air onto soil or dust. Lead distributes throughout body through blood and accumulates in bones. Depending on level of exposure, lead can adversely affect nervous system, kidney function, immune system, etc.

So correct option is 'brain damage'.

The Chipko Movement was launched by Chandi Prasad Bhatt and Sunder Lal Bahuguna in 1973, against large scale cutting of trees by timber contractors in Uttarakhand hills. The movement started in Chamoli district of Garhwal region in Uttarakhand. Local hill women from villages were organised and made aware of ecological threat in hills. They actively participated in campaign. They embraced or hugged trees when timber contractors reached and forced m to leave. This novel campaign for saving hill forests and greenery spread all along hill region and to Karnataka in South also in 1983. In Karnataka, it was named as Apikko movement which was started by Appu and Mamtha in a small village named Gubbi Gadde near Sirsi.

So, correct answer is 'Apikko'.

When level of contaminants in air becomes so much that air becomes harmful to living beings; it is called air pollution.

Malaria is caused by a parasite called Plasmodium vivax through agent Anopheles mosquito.
Dysentry is caused by bacteria Shigella and Campylobacter which leads to severe diarrhea.
The common cold is a respiratory disorder mainly caused due to viruses. It is also called acute coryza. It is mainly caused by coronaviruses and rhinoviruses.
Cancer is disease of abnormal, uncontrollable cell growth leading to formation of tumors. This disease can be genetic or can be caused by mutagenic agents (physical/chemical), radiations, overexposure to sunlight.

So, correct answer is option A.

Global warming causes melting of polar ice caps. This decreases size of glaciers and leads to rise of oceans.

So, correct option is 'All of above'.

	I		II
(p)	e waste	(i)	Waste clothing
(q)	Biodegradable waste	(ii)	Dirt
(r)	Inert waste	(iii)	Green waste
(s)	Composite waste	(iv)	Irreparable waste

Guest You need to login to ask any Questions from chapter Principles-of-Inheritance-and-Variation of Biology-MCQS

Chapter:

p-iv, q-iii, r-ii, s-i

O2?

Integrated forest development

Biochemical oxygen demand

Nutrients

Brain damage

Appiko

air pollution

Cancer

All the above

All Chapters

The Living World

Biological Classification

Plant Kingdom

Animal Kingdom

Morphology of Flowering Plants

Anatomy of Flowering Plants

Structural Organisations in Animals

Cell : The Unit of Life

Biomolecules

Cell Cycle and Cell Division

Transport in Plants

Mineral Nutrition

Photosynthesis in Higher Plants

Respiration in Plants

Plant Growth and Development

Digestion and Absorption

Breathing and Exchange of Gases

Body Fluids and Circulation

Excretory Products and Elimination

Locomotion and Movement

Neural Control and Coordination

Chemical Control and Coordination

Reproduction in Organisms

Sexual Reproduction in Flowering Plants

Human Reproduction

Reproductive Health

Principles of Inheritance and Variation

Molecular Basis of Inheritance

Evolution

Human Health and Disease

Strategies for Enhancement in Food Production

Microbes in Human Welfare

Biotechnology Principles and Processes

Biotechnology and its Applications

Organisms and Populations

Ecosystem

Biodiversity and Conservation

Environmental Issues

Topics

Biology mcqs

Match columns and choose correct options.III(p)e waste(i)Waste clothing(q)Biodegradable waste(ii)Dirt(r)Inert waste(iii)Green waste(s)Composite waste(iv)Irreparable waste

If river water is polluted with domestic sewage and garbage, it leads to depletion of

Afforestation in relation to urban development is component of

BOD stands for

Which of following are dissolved materials present in domestic sewage?

Lead in atmosphere can cause

A movement similar to Chipko which has spread in South is

When level of contaminants in air becomes so much that air becomes harmful for living beings, it is called ________.

Radioactive substances can cause

Global warming will cause.

Guest
You need to login to ask any Questions from chapter Principles-of-Inheritance-and-Variation of Biology-MCQS

O $_{2}$

Match columns and choose correct options.
I II
(p) e waste (i) Waste clothing
(q) Biodegradable waste (ii) Dirt
(r) Inert waste (iii) Green waste
(s) Composite waste (iv) Irreparable waste