1. Go to periodic table and find<span> the atomic </span>mass<span> (top little number) of each element.
2. Multiply each atomic </span>mass<span> by the number of atoms in the </span>formula<span>.
3. Add up the results together. </span>
Climate change, deforestation/habitat loss, pollution, overexplotation and invasive species
Answer:
The answer is B.
Explanation:
The logical explanation is that fossils from animals are changing over time caused by enviroment change ,natural disaters,astronmical events,and so on.These organisms need to adapt over time and so there features change.For Example the dragon fly used to be as big as a bus now that it has adapted and changed from when the cretaceous period it is as small as your index finger.
We'll make this a bit simpler.
1 mile = 1.60934km
90.0 million miles.
9.0 x 10^7 miles * (1.60934km / 1 mile) * (1000m / 1km) = 7.70x10^79 m