The amount of carbon in the atmosphere is about of the total amount of carbon on earth.
a. 0.01%
b. 0.1%
c. 1%
d. 10%

Are oil and water a mixture or solution

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals

How many grams of sodium chloride are in 250ml of a 2.5m naci solution