"And each one of them is visible from less than 1 percent of the Earth's surface."

About 6 percent of Earth's surface is covered by swamps.

The fix worked, but covered only about 10 percent of the park's surface.

The territory represents about 10 percent of the Earth's surface.

At any given time, bubbles cover 3 percent to 4 percent of the ocean's surface.

Gaps are not to exceed 10 percent of Earth's surface.

The sea covers fully 70 percent of the Earth's surface with liquid water.

Two percent of the earth's surface is about 4 million square miles.

This figure represents about 12 percent of Earth's total surface.

I learned in geography class that 71 percent of the earth's surface is water.