If a scientist knows the relative age of a fossil, he can also know A.
the type of climate from which it came.
B.
the relative age of the rock where it was found.
C.
how it became extinct.
D.
how long the organism was alive.

The energy that powers a hurricane is derived from

Which one of the following is an oxidation-reduction reaction? naoh + hno3 --> h2o + kno3 naoh + hno3 --> h2o + kno3 so3 + h2o --> h2so4 cacl2 + na2co3 --> caco3 + 2 nacl ch4 + 2 o2 --> co2 + 2 h2o al2(so4)3 + 6 koh --> 2 al(oh)3 + 3 k2so4

Asolution is produced in which water is the solvent and there are four solutes. which of the solutes can dissolve better if the solution is heated?