About Earth

What % of Earth is water?

• 70%

• 75%

• 71%

• 73%

What is the gravitational force on earth?

• 9.8 m/s^2

• 10.1 m/s^2

• 12.3 m/s^2

• 9.9 m/s^2

Imaginary lines that run from the north pole to the south pole are...

Latitude and longitude are measured in

• inches

• feet

• degrees

• grams

How many independent countries are there?

• 195

• 194

• 249

• 271