Why must ferns live in moist environments? O A. to transport spores to new locations
O
B. to transport water to all cells
O
C. so that egg and sperm cells can join
O
D. so that fiddleheads develop for food

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

the contamination

we are putting to many trash.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms