According to newton's third law, if one object exerts a force on a second object, the second object exerts a force on the first object that is:

a) equal in magnitude and opposite in direction

b) equal in magnitutde and in the same direction

c) different in magnitude compared to the original force

d) the same direction as the original force

A) equal in magnitude and opposite in direction.

the answer would be b

explanation:

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.