
Unit 6 Quiz Review
Authored by Rhett Infanger
Science
8th Grade

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51 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of photosynthesis?
To release carbon dioxide into the atmosphere
To absorb oxygen from the air
To convert the sun's energy into chemical energy (food)
To break down sugars for energy
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of decomposers in a food chain?
Hunt and eat other organisms
Consume producers
Return nutrients to the soil
Make their own food
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nuclear energy has two disadvantages. What are they?
Possible radioactive accidents and power outages
Possible nuclear explosions and power outages
Waste storage and possible radioactive accidents
High cost and waste storage
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is bituminous coal used more than anthracite?
It burns hotter and longer than other stages of coal.
It is easier to find under the surface.
It burns cleaner than other stages of coal.
It is more abundant than other types of coal.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the roles of producers, consumers, and decomposers in an ecosystem, and explain why all three are necessary for a healthy and balanced environment.
Producers create energy, consumers eat producers, decomposers recycle nutrients.
Producers eat consumers, consumers decompose matter, decomposers produce energy.
Producers decompose matter, consumers recycle nutrients, decomposers create energy.
Producers and consumers are the same, decomposers are not needed.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the world's energy supply is made up of nonrenewable resources?
Over 85%
Less than 20%
Around 50%
Exactly 75%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jason loves salads. Some of his favorite ingredients are tomato, lettuce, cheese, olive, salsa, and chicken. Which of the following is not true?
Jason is a primary consumer of tomato, lettuce, cheese, and olive.
Jason’s salad has products from autotrophs and heterotrophs in it.
Jason’s salad is made mostly of products from producers.
Jason’s salad is made only of consumers.
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