The life-form during the Precambrian time was cyanobacteria.
Answer:
B because it is talking about illumination which is lighting something up.
Explanation:
Answer:
animals that eat only plants.
The hydrosphere is all water on earth, the lithosphere is the crust and upper mantle, the biosphere is all life on earth, and the atmosphere is all the gases surrounding the earth.
important circle parts
Radius: the distance from the center of the circle to its outer rim.
Chord: A line segment whose endpoints are on a circle
Diameter: A chord that passes through the center of the circle
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