Answer:
B
Explanation:
Valleys are created by streams of running water
It is called a POLYSACCHARIDE. Polysaccharides refers to polymeric carbohydrate molecules which are made up of more than two long chains of monosaccharide units that joined by glycosidic linkages. When polysaccharides are hydrolyzed they decompose to their component monosaccharides. Examples of polysaccharides are starch, cellulose and glycogen.
Answer - (2) Conserves nonrenewable resources.
Reasoning - So lets pay close attention to the question as it has stated (Solar electric system benefits environment) as it means solar which is sun power which already gives a hint that we need to save the environment and try to conserve. So Greater use of the solar can help conserves nonrenewable resource which in this case is fossil fuels.
<span>superposition.. its literally word for word "secondary layers are placed on top of the first layers which are on the bottom"</span>