Firacking opens cracks that exist in underground rock, allowing gas to escape back up through the well. Which statement best describes an environmental consequence of this process?

O Wastewater is contaminated with oil and becomes sludge in landfills.

During natural gas extraction, methane escapes into the atmosphere.

O Water vapor is released into the air, which is considered a greenhouse gas.

Heavy metals are released into surreunding soil, poisoning teeal vegetation.

answer axon terminal,synaptic cleft; and motor end plate;

the right option is; decreased genetic variation  

decreased genetic variation describes the effect of this environmental change.

genetic variation is the naturally occurring genetic diversities or differences between organisms of the same species in a population. genetic variation allows the survival and adaptability of a species when they encounter changing environmental conditions. when an endangered species reduces, it loses genetic variation which may not be restored even if the species rebound and will only be recovered through the gradual collection of mutations over many years.