Phosphorous is:

A:found free in the atmosphere

B: returned to the soil by rhizobium

C: added to the soil though weathering

D: usually very abundant in an ecosystem

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

Abiologist counts the number of rabbits in a population each year and observes a decrease in population. since the coyote population has exploded, the biologist concludes that the coyote population has had a negative interaction with the rabbit population. which describes the biologist’s actions? a.) experimentationb.) inferencec.) observationd.) interacting

Add solid urea to a beaker of water. the beaker gets very cold. is δh favorable or