The image of a scientist collecting a sediment core was taken at the Wild Harbor salt march on Cape Cod, Massachusetts. What evidence is this person hoping to collect from this research? Scientist taking a sample of marsh soil.
© 2016 Woods Hole Oceanographic Institution

She hopes to discover if the oil is still floating on the surface.
She hopes to see if the oil is still present deep down below the surface.
She hopes to collect animals that have died from the spill.
She hopes to see how easily the oil can be removed from the soil.

She hopes to discover if the oil is still floating on the surface.

She hopes to see if the oil is still present deep down below the surface.

She hopes to collect animals that have died from the spill.

She hopes to see how easily the oil can be removed from the soil.

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.