APES Unit 6 Oceanography

In which cycle is limestone a key factor?

• Carbon

• Phosphorus

• Nitrogen

• Sulfur

About what % of water is salt water?

• 3%

• 50%

• 75%

• 97%

What nutrients are most likely to cause algae blooms?

• Nitrogen and Sulfur

• Sulfur and Carbon

• Nitrogen and Phosphorus

• Sulfur and Phosphorus

Turbidity is a measure of:

• The health of a stream

• The clarity of the water

• Dissolved Oxygen

• Speed of the water

If water is a mixture of salt and freshwater, it is considered

• Brackish

• Turbid

• Polluted

• Limnetic

If you are in a marine area where you have to be adapted to strong waves and drying out you are in a:

• Intermediate Zone

• Photic Zone

• Intertidal Zone

• Aphotic Zone

Coral Reefs are built by

• Rocks piling up in areas

• Sponges

• Tiny animals called polyps

• Sand that sediments into rock

The pelagic zone is

• The area of the ocean that is not intertidal.

• The area of lakes that is too deep for sunlight

• The area of ocean that is too deep for sunlight

• The bottom of a lake

The aphotic zone is

• Too deep for any light to penetrate

• Also called the midnight zone

• Too deep for photosynthesis.

• The area with enough light for photosynthesis.

Hydrothermal vents are areas where what happens?

• Plants make energy using photosynthesis.

• Plants make chemosynthesis.

• Bacteria make energy using photosynthesis.

• Bacteria make energy using chemosynthesis.