1. what kind of process would deposit a sandbar in a river: a constructive process or a destructive process? 2. what are two examples of destructive processes that can change landforms? 3. how is decomposition related to organic matter (matter that came from things that were once living)? 4. which layer is most affected by the action of biota (plants and animals on the land)? ! : ) : ) : )

1.sandbars are made of sand which has been thrown around by wind and therefore is a destructive proscess .
 2.And Volcanic eruption and a hurricane are all things that can change landforms .
3. Decompisition is when something dies and decomposers like maggots mush rooms bacteria and fungi clean up the dead body and is therefore decoposed only bones are left.
4.It would be plants and animals on land because they breathe air straight from the atmosphere while animals that live in water breathe dissolved oxygen except from the dolphins and whales . hope this helped

1. protection 2. homeostasis 3. storage4.blood formation5.bone marrow 6.movement