I believe it’s Precambrian.
Answer: This modern-day researcher used some of the same theories that Darwin proposed. Like Darwin and his finches and tortoises, this scientist understood that the Galapagos cormorants inherited flightless wings. Darwin eventually discovered that his Galapagos finches likely evolved from other species of finches on the mainland. This evolution was similar to how the flightless Galapagos cormorants evolved from other species of cormorants.
Explanation:
The portion of the Moon's surface that cannot be directly observed from Earth
The time taken by light to reach pluto will be 5.6 hours.
<h3><u>Explanation</u>:</h3>
The light is a electromagnetic wave that has the highest velocity and same velocity as all other electromagnetic radiations existing in this universe. The light takes about 8.2 seconds to reach from sun to earth. So lets check howmuch time does light take to reach pluto from sun.
The speed of light was calculated to be
m/s. This is the speed of each and every electromagnetic waves.
The distance of pluto from sun is huge. On an average it's
km or
m.
So time taken by light to reach from sun to pluto will be
seconds. Or actually 5.6 hours.
Answer:
Physical digestion prepares the food for chemical digestion.