A town is near a river that sometimes floods. The town leaders are thinking about building a dam to help prevent floods. They want to find out how to protect the environment from harm that a dam might cause.
Which two questions should they ask to best help them protect the environment?
O A How do people use dams to get electricity?
B. How often do rainstorms happen after building a dam?
C. How do people think building a dam might affect them?
D. How do Increases in sediment above a dam affect animals?
E How does changing the amount of water below a dam change ecosystems?

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Which of the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water