Answer:
Variations in the sun's energy reaching Earth
Changes in the reflectivity of Earth’s atmosphere and surface
Changes in the greenhouse effect, which affects the amount of heat retained by Earth’s atmosphere
Explanation:
Photovoltaic cells.
While semiconducting material such as silicon, the other a metal such as aluminum or silver.
The ecosystem makes the forest sustainable
Answer:
Smooth muscle tissue
Explanation:
In the diagram it can show you. It is the one in the middle!
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