Which of the following describes how electromagnetic energy travels? a long strings b short strings c waves d bursts

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

How water is moving through the ecosystem ?