Form where a river ends and becomes a body of water

Which are forms of nitrogen that are usable by humans

How does a lytic infection differ from a lysogenic infection?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back