In volume of water, what is the largest river in the world?

Mount Everest is the tallest mountain in the world. How tall is it?

What important mountain range is Mount Everest a part of?

The deepest place on Earth is the Mariana Trench. How deep is it?

Western Deep in South Africa is the deepest mine dug into the Earth by humans. How deep is it?

What is the longest mountain range on Earth?

Among the continents, where does North America rank in area?

The CN tower in Toronto is 550 m tall. How does that compare to the tallest waterfall on Earth (Angel Falls in Venezuela)?

What percent best represents how much of Earth's surface is covered in water?

What percent of the oceans have actually been explored by humans?

In volume, what is the largest lake on the planet?

In area, what is the largest lake on the planet?

Earth's north and south pole will eventually switch, as they have done before many times.

If you were standing on the equator, you would move approximately 1,000 mph around the center of the planet. How fast would you move standing on the North Pole?

How fast is Earth traveling through space?

Veryovkina Cave in Georgia (the country not the state) is the deepest cave on the planet. How deep is it?

Mammoth Cave in Kentucky is the longest cave system in the world. How long is it?

On what continent are the oldest human remains found?

Northwest Ohio was once known as (check all that apply)