Smallpox epidemic among Native Americans?

Smallpox epidemic ravages Native Americans on the northwest coast of North America in the 1770s. During the 1770s, smallpox (variola major) eradicates at least 30 percent of the native population on the Northwest coast of North America, including numerous members of Puget Sound tribes.

Explanation:

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.

1. they vary with a higher number because boiling is way hotter than melting