A student studying the amount of soil erosion due to heavey rainfall in an area with many hills and valleys. in which of these locations in the area will the student most likely find the greatest amount of soil erosion A. the hillsides

B. flowing water

C:a densely city in a valley, because removal of grass an trees to build structures leaves soil exposed to the flower water
D. A hillside where the trees have been cut down for lumber because there are fewer plants to slow the flow of water down the hillside

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

Describe how viruses and bacteria can be used as biological weapons. what are some of the potential threats and potential benefits? do you agree with the use of viruses and bacteria as biological weapons? why or why not?