When you flip a coin, what is the probability that it will come up heads?
a. 1
b. 1/4
c. 1/2
d. 1/8

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

Mention true or false : a) cholera is marked by acute diarrhea and no urination. b)mosquitoes are the source of dysentery germs.

9. the history of life on earth is recorded in