

Ecosystems and Biogeochemical Cycles
Interactive Video
•
Biology
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do ecosystems require a continuous supply of energy from outside?
To maintain biodiversity
To ensure raw materials are cycled and reused
To increase the population of species
To prevent natural disasters
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary process through which plants release oxygen?
Transpiration
Cellular respiration
Evaporation
Photosynthesis
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the opposite process of cellular respiration in terms of gas exchange?
Condensation
Evaporation
Transpiration
Photosynthesis
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a part of the water cycle?
Transpiration
Evaporation
Photosynthesis
Condensation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does water in the solid state become reusable by organisms?
Through evaporation
Through cellular respiration
By melting back into liquid water
Via photosynthesis
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What form of nitrogen do green plants primarily need?
Nitrates
Ammonia
Nitrites
Nitrogen gas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do animals obtain nitrogen?
Through transpiration
By consuming plants or other animals
Through photosynthesis
By breathing it in
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