Biotech and human influences/Ecology

What is not a consequence of deforestation

• Global warming

• Destruction of foodchains and food webs

• Soil erosion

• Climate changes

• Biomagnification

2. What are the consequences of monoculture (select any 4)

• Detoxification

• Pesticides Killing non targeted insects

• Bioaccumulation due to pesticides

• Reduction in biodiversity

• Fertilisers-Eutrophication

What are the consequences of livestock farming (select any (4)

• Release of methane gas by animals

• Overgrazing - soil erosion

• Eutrophication

• Antibiotic resistance

• Bioaccumulation by toxins

What is NOT a sources of water pollutant

• Sewage

• Heavy metals

• plastics

• fertilizers

• methane

What are the consequences of air pollution (select 3)

• Increased respiratory diseases

• Increased ocean temperatures - global warming

• Increased cases of antibiotic resistance

• Cimate changes due to gobal warming

• increase in Coronary heart diseases

Reasons for reduction in population of species (Select any 4)

• Hunting

• Genetic variation

• pollution

• less variation among species

• Climate change

Which of the following are conservative measures to prevent extinction of species (select any 4)

• Education programmes

• Captive breeding

• Captivity

• Seed banks

• Monitoring and legal protection

Increase in greenhouse gase in the atmosphere lead to (a)  

Pesticides are toxic and persistant and ie lead to (a)  

Which of the following way does not help to sustain fish stock

• Controlling number of fish caught (quota)

• Controlling size of the fish caught

• Restocking

• Educating fisherman about sustainable techniques

• Using modern fishing gears