Review
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Lisa Thompson
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How are indicator species like a warning system for bodies of water?
They indicate when food sources are declining
Their illness or death indicates pollution in an aquatic ecosystem
They indicate when predators are reducing the numbers of a species
Their illness or death indicates the body of water is becoming more populated
Tags
NGSS.MS-LS2-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The diagram shows the process of upwelling along the coast of South America. Westward blowing trade winds blow the warm surface water from the coast to the ocean. Cool nutrient-rich water from below upwells to the surface. Every three to seven years the trade winds weaken, and an El Niño-Southern Oscillation (ENSO) event occurs. Which is the most likely result of an ENSO event?
decline in the number of cyclones in the Pacific Ocean
increased number of thunderstorms to the South American mainland
decline in the fishing industry because of the change in the aquatic food chain
decline in the number of people scuba diving due to a decrease in the amount of dissolved oxygen
Tags
NGSS.MS-ESS2-6
NGSS.MS-LS2-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which best explains why inhabitants of an estuary must adapt to frequent environmental changes?
Estuaries receive little sunlight.
The water temperature is constantly warm.
The salinity of the water is constantly changing.
Low levels of oxygen are absorbed by the water.
Tags
NGSS.MS-LS2-4
NGSS.MS-LS4-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which would most likely cause a sudden increase of nitrates in a waterway?
spill from an oil tanker
runoff from a boat yard
runoff from a golf course
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Of the 74% of Earth’s surface that is covered in water, which contains the most water?
lakes
rivers
oceans
streams
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The figure shows the zones of the ocean. Coral reefs require sunlight because reef-building coral contain photosynthetic algae in their tissues. The reefs must sit on the ocean floor for support and must remain underwater to survive. In which ocean zone does a reef most likely thrive?
oceanic zone
benthic zone
neritic zone
intertidal zone
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which best explains why there is a greater concentration of oxygen located near the ocean’s surface?
Sunlight warms the ocean’s temperature and stimulates oxygen production near the surface
Plankton produces excess amounts of nutrients that remove oxygen levels from the atmosphere
Marine life gives off oxygen instead of carbon dioxide, which makes the ocean water rich in oxygen
Plants, which release oxygen, live near the surface of the ocean, where they receive large amounts of sunlight
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
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