Which of the following is a question which science cannot answer? Why does the moon have different phases?
What will be the date when the sun burns out?
How do green plants make their own food?
How long does it take for the earth to orbit the sun?

What will be the date the sun burns out?

Explanation:

There's no way to know for sure!

the answer to this predicament is false, by friend, i had this on a quiz, and i got it wrong, so i learned it, cos i was gonna have it on a test, and i got it right

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.