Which structure is an adaptation that birds break down food? a. kidney b. gizzard c. anus d. liver

B gizzard

Explanation:

The structure that is an adaptation to help break down food is the gizzard which consist of strong muscle to help break down and digest food. it is located in lower stomach of birds and contains ingested stones to help in digestion.

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.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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