Approximately How Many Square Kilometres of Earth's Surface Is Exposed

question 135

Multiple Choice

Approximately how many square kilometres of Earth's surface is exposed above sea level?

• A)18 million
• B)29 million
• C)49 million
• D)149 million
• E)360 million

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Definitions:

Native Language

The first language a person learns, typically spoken in the home during childhood.

Y Chromosome

A sex chromosome typically associated with male biological characteristics in humans and other mammals, playing a crucial role in sex determination and genetic inheritance.

Testosterone

A primary male sex hormone that plays key roles in health and well-being, including the development of male secondary sexual characteristics.

Indifferent Gonad

A gonad in its early developmental stages before it differentiates into a testis or an ovary.