Answer:
A. Many environments are not suitable for fossil formation.
Overexploitation, Habitat loss, invasive species, climate change
Answer:
The blood vessel from lungs to heart is pulmonary vein which carries oxygenated blood.
90% of people weigh more than Nikoleta and 10% weigh less.
I think it be D.But if that ever happen I'm sure that the scientists will find away to stop it
