Answer:
the atmosphere
Explanation:
because coal-powered electrical plants produce air pollution, which is one of the main causes of global warming, so if it was substituted for hydroelectric or geothermal sources the amount of air pollution would decrease greatly.
28 Alleles
29 Oocyte
30 Spermatocyte
31 X X chromosome
32 X Y chromosome
33 Males are prone to have sex linked disorders
34 Down Syndrome
Cru di chat
35 Family Tree