The town of alpine glen lies at the base of a mountain and next to the alpine river. in recent months, the people of the town have noticed that the river has become much muddier, and that silt deposits have been building up along the river banks. which of the following changes to the environment is the most likely cause of the change to the alpine river? a. trees were cleared from a mountainside, causing an increase in soil erosion. b. cattle or other livestock were introduced to the mountain, causing an increase in soil erosion. c. a new dam began operating on the river, causing soil to be added to the water. d. a new power plant increased the river temperature, causing the erosive force of the water to increase.

Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening