1. What happens when soil erodes? 1.minerals and salts float to the top
2. minerals and salts clog streams and rivers
3. minerals and salts release nutrients
4. minerals and salts move across the land or leach downwards

please help
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Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.

Which of the following describes what an activator an enhancer are