Which most likely contributed least to mexico city's air pollution?
a.
uranium
b.
coal
c.
oil
d.
natural gas

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

What are 3 reasons that natural selection occurs