Which of the following is a likely effect as dams and reservoirs are used to store water for urban water supply and irrigation? A. increase of deposition of sand on beaches

B. increase of converted prairies to cropland

C. reduction of erosion along rivers

D. reduction of sediment carried by rivers to the coast

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

How does a gymnosperm prevent itself from pollinating the same tree

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?