Get premium membership and access questions with answers, video lessons as well as revision papers.
i) Effects of air pollution on plants
In order to grow healthy, plants need clean air. Polluted air affects plants in the following ways:
• Leaves are covered with dust particle and thus blocking the sunlight and so affecting photosynthesis, the process by which plants make their own food. Soot and dust block the stomata this may affects plants.
• Some waste gases such as sulphur dioxide dissolve in water droplets to form acidic solutions which damage leaves of plants. Presence of these gases in the air could also lead to formation of acid rain which make the soil to be acidic thus affecting the availability of nutrients to plants. High acidity on the soil may interfere with the survival of organisms that are very important to plants growth. When absorbed through root s, acid rain interferes with proper development of plant and it may wither and die. When deposited in water sources like pond, lakes and oceans, water plants that feed on water animals are affected.
ii) Effects of air pollution on animals
Air pollution is a threat to humans, domestic and wild animals through the following ways:
• Causes respiratory problems. When animals inhale dust and other harmful gases, they can develop respiratory such as coughing and sneezing which may result to respiratory diseases.
• May cause allergies resulting in coughing, sneezing, irritation of eyes and breathing problems.
• When acid rain gets deposited into water sources like lakes, ponds, and oceans, water animals e.g. fish are affected.
b) Effects of air pollution on non-living things
• Sulphur and carbon dioxide are among gases that cause air pollution when dissolved in the rain water. They form acid rain which corrodes metals such as corrugated iron sheets and stones like marble.
• Acid rain causes weathering of rocks.
• The view of environment is also destroyed by smoke and smog which are a mixture of gas particles.
• Smog destroys materials made of rubber too.
• Dust particles soil our clothes and settle on surface of tables, window sills and furniture thus making then dirty.
Mutiso answered the question on October 8, 2018 at 05:27
- Explain the major causes of air pollution(Solved)
Explain the major causes of air pollution.
Date posted: October 8, 2018. Answers (1)
- Outline the various methods of soil conservation(Solved)
Outline the various methods of soil conservation.
Date posted: October 8, 2018. Answers (1)
- Explain the effects of soil pollution on plants and animals(Solved)
Explain the effects of soil pollution on plants and animals.
Date posted: October 8, 2018. Answers (1)
- Outline some of the causes of soil pollution(Solved)
Outline some of the causes of soil pollution.
Date posted: October 8, 2018. Answers (1)
- Explain the major components of the environment(Solved)
Explain the major components of the environment.
Date posted: October 8, 2018. Answers (1)
- Outline the effects of drugs on health and society(Solved)
Outline the effects of drugs on health and society
Date posted: October 8, 2018. Answers (1)
- Give ways through which medicines are misused(Solved)
Give ways through which medicines are misused.
Date posted: October 7, 2018. Answers (1)
- Give examples of sexually transmitted infections giving causes and prevention measures(Solved)
Give examples of sexually transmitted infections giving causes and prevention measures.
Date posted: October 7, 2018. Answers (1)
- What are some of the control measures for HIV/AIDS?(Solved)
What are some of the control measures for HIV/AIDS?
Date posted: October 7, 2018. Answers (1)
- Outline care and support for people infected with HIV/AIDS(Solved)
Outline care and support for people infected with HIV/AIDS.
Date posted: October 7, 2018. Answers (1)
- Effects of HIV/AIDS infection on an individual, family, children and the nation(Solved)
Effects of HIV/AIDS infection on an individual, family, children and nation.
Date posted: October 7, 2018. Answers (1)
- Outline the importance of HIV testing(Solved)
Outline the importance of HIV testing.
Date posted: October 7, 2018. Answers (1)
- Describe some of the common immunizable diseases(Solved)
Describe some of the common immunizable diseases.
Date posted: October 7, 2018. Answers (1)
- Giving examples, explain two types of communicable diseases, their signs and symptoms as well as prevention measures(Solved)
Giving examples, explain two types of communicable diseases, their signs and symptoms as well as prevention measures.
Date posted: October 7, 2018. Answers (1)
- Describe human excretory organs and outline the waste products they get rid of(Solved)
Describe human excretory organs and outline the waste products they get rid of
Date posted: October 7, 2018. Answers (1)
- With aid of diagrams, describe fertilization, development of foetus and birth process in human beings(Solved)
With aid of diagrams, describe fertilization, development of foetus and birth process in human beings.
Date posted: October 7, 2018. Answers (1)
- With the aid of a diagram, describe the structure and functions of the heart(Solved)
With the aid of a diagram, describe the structure and functions of the heart.
Date posted: October 7, 2018. Answers (1)
- Outline the types of blood vessels and their functions(Solved)
With aid of diagrams, outline the types of blood vessels and their functions.
Date posted: October 6, 2018. Answers (1)
- Explain the various components and functions of the human blood(Solved)
Explain the various components and functions of the human blood.
Date posted: October 6, 2018. Answers (1)
- Explain the components of human circulatory system(Solved)
Explain the components of human circulatory system.
Date posted: October 6, 2018. Answers (1)