Bio - 20.1

Question 1

human pressures on ecosystem

Answer 1

1. food production
2. monoculture
3. intensive livestock production

Question 2

food production

Answer 2

• producing crops for human consumption
• ensures food security
• population growth increases the demand for food

Question 3

advantages - food production

Answer 3

• increased food supply : helps meet the growing demand for food
• economic benefits : supports local farmers

Question 4

disadvantages - food production

Answer 4

• environmental degradation : overuse of pesticides
• loss of biodiversity : habitat destruction

Question 5

mono culture

Answer 5

• practice of growing a single crop on a large scale over a long period
• supports global trade

Question 6

advantages - monoculture

Answer 6

• higher yields : specializing 1 crop = efficient farming & higher production
• easier to manage

Question 7

disadvantages - monoculture

Answer 7

• soil depletion : drains nutrients from soil
• increased vulnerability : pests and diseases

Question 8

intensive livestock production

Answer 8

• raising large no of animals in confined spaces
• fed to speed up growth
• gives humans high protein

Question 9

advantages - intensive livestock production

Answer 9

• efficient use of resources : allows large scale production for low cost
• high productive : able to meet global demand

Question 10

disadvantages - intensive livestock production

Answer 10

• unhygienic : rapid spread of diseases and can be passed on to humans during consumption
• pollution : livestock can pollute water