Environmental Science Final Exam Form A

Most of the nitrogen (N₂) is taken up from the atmosphere by...

• soil bacteria
• trees and flowering plants
• humans
• algae

Greenhouse gases....

• make plants green
• increase the temperature of the earth
• produce oxygen
• decrease the temperature of the earth

Identify an a example of an abiotic factor?

• Panda
• Turtle
• Butterfly
• sunlight

The trees in this biome shed their leaves and grow new ones each year:

• temperate deciduous forest
• grasslands
• deserts
• tundra

What are some problems associated with low tide?

• Waves crashing on shore may affect an organism's ability to hold on.
• Organisms may dry out due to lack of water.
• Organisms are exposed to direct sunlight.
• All of the above.

What type of growth is represented on the graph?

• exponential
• logistic
• a good kind
• representative

What does the graph represent?

• Emigration
• Exponential growth
• Immigration
• Logistic Growth

An environmental factor such as predation, disease, and competition that depends on the number of members in a population per unit

• dispersion
• density- independent factor
• density- dependent factor
• population growth rate

What is genetic engineering?

• Manipulation/addition of genes
• Naturally breeding two animals with desired traits
• Cross-pollinating two crops
• Harvesting stem cells

Pesticides:

• Sprays that kill insects

• Water, soil, minerals, wildlife, forests

• Where something lives

• Smoke and harmful gases