1. rocks found in a river bed would typically be what type of rocks?

sedimentary
metamorphic
igneous
lava

2. parasitism is when

one organism benefits from another without it being affected
both organisms benefit from a relationship
one organism feeds off another making it weak or killing it
both organisms are hurt from a relationship

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. establishing proper sleep hygiene