%20
Both mercury and mars have a gravity which is around 38% of earths. Mercury's gravity is 37.8% of earths, Mars' gravity is 37.7% of earths.
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.
Indian Ocean covers 20% of water on the earths surface.
Their evidence comes from rocks at earths surface.
is mount novarupta responsible for any of earths surface changes
permafrost
100
Approximately 20-25% of the Earth's land surface is underlain by permafrost. Permafrost is a frozen layer of soil, rock, or sediment that remains at or below 0°C for at least two consecutive years.
Water covers about 70 percent of the Earth's surface.
75%
deserts
no
75%
Water makes up about seventy five percent of the Earth's surface.
Water covers 71% of the Earth's surface
the earths surface is 70% covered by water
About 70 percent of the Earth's surface is covered in water, and about 90 percent of that is salt water.