It destroys haemoglobin It disrupts O

_{3}

layer It lowers atmospheric temperature It prevents cloud condensation

Answer

9. Read following statements and select correct option.

Statement 1: Ozone layer present in stratosphere protects living organisms from harmful UV rays coming from sun by absorbing nearly all of m.

Statement 2: Ozone formed in troposphere by photochemical reactions as a result of human activities which is harmful to all living organisms.

Both statements 1 and 2 are correct. Statement 1 is correct but statement 2 is incorrect. Statement 1 is incorrect but statement 2 is correct. Both statements 1 and 2 are incorrect.

Hint Answer

10. What is meaning of environmental protection?

Hint Answer

Nexttt

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Biology mcqs

What is "terror of Bengal"?

;

BOD of a pond is related to .......... in per unit volume of water.

;

Draw a labelled diagram of typical biogas plant.

;

The given diagram shows contribution of greenhouse gases. Which gas contributes a minimum to greenhouse effect?

$The given diagram shows contribution of greenhouse gases. Which gas contributes a minimum to greenhouse effect?\r\n$

;

Which of following does not affect ozone layer ?

;

Wastes may be sealed in concrete-filled drums and discharged to a depth of about 500 m. This specific statement is true for

;

Ozone hole refers to

;

The common refrigerant chlorofluoromethane (Freon) and NO $_{x}$ is a serious pollutant because?

;

Read following statements and select correct option.

Statement 1: Ozone layer present in stratosphere protects living organisms from harmful UV rays coming from sun by absorbing nearly all of m.

Statement 2: Ozone formed in troposphere by photochemical reactions as a result of human activities which is harmful to all living organisms.

;

What is meaning of environmental protection?

;

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Chapter:

All the microbes

Nitrous oxide

Cl2?

Radioactive pollutants

Reduction in thickness of ozone layer in the stratosphere

It disrupts O3? layer

Both statements 1 and 2 are correct.

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

What is "terror of Bengal"?

BOD of a pond is related to .......... in per unit volume of water.

Draw a labelled diagram of typical biogas plant.

The given diagram shows contribution of greenhouse gases. Which gas contributes a minimum to greenhouse effect?

Which of following does not affect ozone layer ?

Wastes may be sealed in concrete-filled drums and discharged to a depth of about 500 m. This specific statement is true for

Ozone hole refers to

The common refrigerant chlorofluoromethane (Freon) and NOx​ is a serious pollutant because?

What is meaning of environmental protection?

Guest
You need to login to ask any Questions from chapter Biotechnology-and-its-Applications of Biology-MCQS

Cl $_{2}$

It disrupts O $_{3}$ layer

The given diagram shows contribution of greenhouse gases. Which gas contributes a minimum to greenhouse effect?

$The given diagram shows contribution of greenhouse gases. Which gas contributes a minimum to greenhouse effect?\r\n$

The common refrigerant chlorofluoromethane (Freon) and NO $_{x}$ is a serious pollutant because?