How does nitrogen from the air get into the bodies of plants and animals?

What is magnetic flux? explain faraday's law of induction.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.