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the cycles of matter
Terms in this set (14)
which elements are essential for living organisms to survive?
Match each of Earth's spheres with the correct description.
hydrosphere- oceans, lakes, glaries, and groundwater
biosphere- all of earth's living things
atmosphere- air surrounding earth
geosphere- earths interior rocks minerals and landforms
what organisms release carbon dioxide during cellular respiration?
both producers and consumers
Which best describes nitrogen fixation?
Nitrogen fixation is the conversion of nitrogen gas into a usable form.
Which two processes allow water to enter the atmosphere?
evaporation and transpiration
Which statements describe characteristics of Earth's geosphere? Check all that apply.
It is mostly solid.
It includes Earth's surface.
It includes Earth's interior.
Why are bacteria needed in the nitrogen cycle?
Bacteria are the main nitrogen reservoir.
A scientist is investigating how the amount of available water affects plant growth in a rainforest. Although all of Earth's spheres are interconnected, which of Earth's spheres does the scientist's investigation focus on?
the hydrosphere and the biosphere
Which process can help counteract these human interactions?
The sphere that refers to Earth's water is called the
A student wants to learn how plants and animals interact with one another in an ocean habitat. Which of Earth's spheres should the student study the most?
What is one negative effect of human influence on cycles of matter?
decreased amount of carbon in the atmosphere due to deforestation
How do animals get nitrogen?
They eat it in plants and other animals.
Which disruption in the water cycle would most likely affect photosynthesis?
heat causing an excess of transpiration
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