How much of Mars's ancient ocean was lost to space?Group of answer choices15%47%65%87%100%

How much of the Earth’s surface is covered with water?*1 pointAbout 71%About 50%About 3%About 15%

Earth's oceans Blank______.Multiple select question.have a short water residence timecontain about 90 percent of its biomasscontain about 97 percent of all liquid watercover nearly half of the planet's surfaceNeed help? Review these concept resources.

What percentage of the Earth's surface is covered by water?*A) 50%B) 60%C) 70%D) 80%

What percentage of heat energy is absorbed by the ocean?Group of answer choices93%63%23%75%

The density of oceanic crust is ___ g/cm3Group of answer choices2.02.73.04.7