Why do salmon migrate?
a. to escape predators b. to lay their eggs €, to search for better sources of food
d. because the waters where they were born become too cold in winter
A) to escape predators
B) to lay their eggs
C) to search for better sources of food
D) because the waters where they were born become too cold in winter

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.