Fine pebbles are 2.0 to 5.0 mm in diameter. sand is 0.05 to 2.0 mm in diameter. which of the following statements is true?
a. fine pebbles have a lower terminal fail velocity than sand.
b. fine pebbles have a higher threshold velocity than sand
c. fine pebbles are more vulnerable to wind erosion than sand
d. fine pebbles in a river will be deposited after sand.

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-

What are the characteristics of subsystem

All other things being equal the size of a population will decrease if