SECTION-D
Q.22. Explain the defination of pollution and it's types air pollution & water pollution ?
Q 23. Explain the animal husbandry and fish production ?
Answers
Answer:
22) Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
*Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles
*Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment
Explanation:
23) Animal husbandry is the branch of science deals with the practice of breeding, farming and care of farm animals such as cattle, dogs, sheep and horses by humans for advantages. Animal husbandry refers to livestock raising and selective breeding. It is a branch of agriculture.
The farming of the fishes for the commercial use like food products in an area is called as Fish production or fish farming. ... Fish farming involves raising fish commercially in tanks or enclosures, usually for food.