Ecology Unit Test

What is the original source of energy in most ecosystems?

• carbohydrates

• sunlight

• water

• carbon

What is an invasive species?

• A native (naturally found) species which are added to an area. 
• A non-native (not naturally found) species added to an area. 
• A keystone species in an environment
• none of the above

_____________________ is the contamination of air, land, and water.

• Conservation

• Ecology

• Pollution

 Which biome is more likely to survive a change in the environment?

• High (rich) biodiversity
• Low (poor) biodiversity

the variety of life in the world or in a particular habitat or ecosystem

• biodiversity

• demography

• carrying capacity

• poaching

The greatest cause of biodiversity loss today is

• Pollution

• Habitat loss

• Climate Change

• Invasive species

Forest clearing, farming, and road building are all examples of

• Biodiversity

• Population distribution

• Habitat loss

• Climate Change

What is a human activity that can cause habitat destruction?

• Planting trees

• Buying clothes

• Deforestation

• Pick up fruits and vegetables

Where does most air pollution come from?

• Human activities

• Wildfires

• Volcanic eruptions

• Allergens

The Greenhouse Effect is

• when TOO MANY greenhouse gases (like carbon dioxide) are released into the atmosphere, trapping the sun's heat

• when NOT ENOUGH greenhouse gases (like carbon dioxide) are released into the atmosphere, making sun's heat escape

• when the Earth is cooled because of the extra gases in the atmosphere

• when the Earth is cooled because it's so cool.