Question 9 of 10
5 points
why do we only have fossils of a fraction of the things that have existed on
earth?
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a. many environments are not suitable for fossil formation.
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b. fossils can only form during an ice age.
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c. fossils can only form underwater.
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d. not all mammals can become fossilized.
submit

A. Many environments are not suitable for fossil formation.

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

c

explanation: