How Old Is the Oldest Water Discovered on Earth

question 10

Multiple Choice

How old is the oldest water discovered on Earth?

• A)1,500 years
• B)1.5 million years
• C)250 million years
• D)1.5 billion years

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Definitions:

X Chromosome

One of the two sex chromosomes, playing a key role in determining genetic sex; females typically have two X chromosomes while males have one X and one Y.

Y Chromosome

The sex chromosome typically found in male mammals, which carries genes responsible for the development of male characteristics.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA.

Autosome

Any chromosome that is not a sex chromosome, involved in determining the genetic traits of an organism except for the sex.