The base of all aquatic food chains is ?

• Phytoplankton
• Fish
• bugs
• Zooplankton

This occurs twice a year in the spring and fall when the water on top of a lake sinks to the body and the water from the bottom floats to the top.

• eutrophication
• flipping
• gradient
• turnover

This is a zone of rapid temperature and oxygen change that you will find in lakes or oceans.

• Hypolimnion
• Thermocline
• Epilimnion
• Oligotrophic

This value is neutral on the pH scale.

• 1
• 7
• 14
• 0

When a lake receives extra nutrients from fertilizers and animal waste, this process occurs.

• Photosynthesis

• Evaporation

• Decomposition

• Eutrophication

Which of the following is not a problem in lakes

• Invasive Species
• Pollution
• Eutrophication
• Zooplankton

In this lake zone, there is little or no sunlight, low in oxygen, and bacteria decomposing dead organisms are found here.

• Littoral

• Epilimnion

• Hypolimnion

• Equatorial

This Wetland is dominated by trees and the top layer of soil is organic with mineral soil beneath.

• Swamp
• Bog
• Marsh
• Seep

These are partially enclosed body of water where seawater is mixed with fresh water.

• Stream
• Estuary
• Watershed
• Swamp

This type of wetland has relatively clear water, with lots of herbaceous vegetation and some areas of open water.

• marsh
• swamp
• bog
• seep