Human Impact Final Test

Which is a pioneer species?

• lichen
• tree
• shrub
• mouse

Which occurs because of an increase in carbon dioxide?

• eutrophication
• acid rain
• greenhouse effect
• erosion

Which describes the number and variety of organisms in an area?

• succession
• biodiversity
• carrying capacity
• eutrophication

Which area has the greatest biodiversity?

• a maple tree
• fish tank
• tundra
• rainforest

How does secondary succession begin?

• soil
• bare rock
• plants

Occurs when animals take in oxygen to break down food for energy and release Carbon Dioxide into the environment.

• photosynthesis
• respiration 
• combustion
• decomposition 

Occurs when dead organic matter is broken down to return nutrients and carbon to the environment.

• photosynthesis
• decomposition
• respiration 
• combustion 

The release of carbon dioxide, water, and the loss of energy as heat into the environment.

• photosynthesis
• decomposition
• combustion
• decomposition

What type of pollution includes fertilizers and pesticides?

• biological
• chemical 
• thermal (heat)
• air

What is point pollution?

• has once source that can be indentified
• has many sources which can be difficulty to pinpoint.