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Boost Review: The Hydrosphere
Test Description: 8.E.1: Understand the hydrosphere and the impact of humans on local systems and the effects of the hydrosphere on humans.
Instructions: Answer all questions to get your test result.
1) The main producers in the ocean are_______
A
Zooplankton and small fish
B
Zooplankton and water
C
Coral reefs and sponges
D
Phytoplankton or Algae
2) An area of land that drains into a stream, river, lake, or other body of water is called _____
A
An estuary
B
A river
C
A watershed
D
An Aquifer
3) What us pollution?
A
An increase in Earth's Temperature
B
A sudden growth of algae in a pond
C
A decrease of oxygen in a body of water
D
The release of harmful substances into the environment.
4) A body of water that has high turbidity is _______
A
Acidic
B
Cloudy
C
Clear
D
Basic
5) Which of the following water pH levels is the best for marine organisms?
A
1.0
B
3.5
C
7.8
D
12.0
6) What is a rock layer that collects and stores water?
A
Aquifer
B
Spring
C
Watershed
D
Estuary
7) An algal bloom in a water system is mostly likely caused by_________
A
Large amounts of nutrients(nitrogen/phosphorus) in runoff
B
High levels of oxygen in the water.
C
Decreases in fish populations.
D
Increased use of fossil fuels.
8) Which of the following is the main reason why the ocean is salty?
A
Salts are spilled by ships as they sail through the ocean.
B
Salts naturally form from water molecules in the ocean
C
Salt dissolves from trash dumped into the ocean.
D
Minerals and salts are dissolved by surface waters as they move over land into the ocean
9) Which of the following statements is correct about Earth's water?
A
Almost 97% of Earth's water is freshwater, and found in large lakes.
B
Only 3% of Earth's water is freshwater, and it is mostly found in polar ice caps, snow, and glaciers.
C
Only 1% of Earth's water is freshwater, and it is found in aquifers
D
About 50% of Earth's water is saltwater, and is found in oceans
10) An area where freshwater mixes with saltwater is called__________
A
an estuary
B
a river
C
a watershed
D
the beach
*select an answer for all questions
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