Answer:
a) are the sources of long-period comets.
This is a true statement.
Niformitarianism is the assumption that the same natural laws and processes<span> that operate in the universe now have always operated in the universe in the past and apply everywhere in the universe. It refers to invariance in the metaphysical principles underpinning </span>science<span>, .... </span>Modern geologists do<span> not apply uniformitarianism in the same way as Lyell.</span>
For number 17, the city with the highest polulation density is Tokyo. Most of Japan's people live there.
The sun produces its own light whereas moon does not have its own light it reflects the light from the sun
