3.3.2

Question 1

What are some of the human activities that cause species extinctions?

Answer 1

The human activities that cause species extinctions include habitat destruction, introduction of invasive species, pollution, overharvesting, and hunting.

Question 2

What is a major factor in the loss of biodiversity?

Answer 2

Habitat loss is the major cause of loss of biodiversity.

Question 3

Define overexploitation

Answer 3

Overexploitation is the hunting and harvesting of food resources which leads to overuse of the environment

Question 4

How has agriculture caused environmental problems?

Answer 4

The introduction of monoculture (growth of one species), fertilizers, and pesticides, as well as the introduction of genetically modified species has caused instability in the environment.

Question 5

How does pollution affect habitats?

Answer 5

Pollution destroys and degrades habitats. Pesticides, fertilizers, factory emissions, and oil spills have caused tremendous amounts of damage to the environment and climate change

Question 6

What are some of the natural hazards that can affect the environment?

Answer 6

Natural hazards include volcanic eruptions, earthquakes, landslides, natural fires, avalanches, tsunami, and drought.