Venus and Earth Started Out with Roughly the Same Amount

question 33

Multiple Choice

Venus and Earth started out with roughly the same amount of water.While Earth still has water in abundance,all of Venus' was lost.Where did it go?

• A)It chemically combined with CO₂ to form H₂CO₃.
• B)Ultraviolet rays split the hydrogen from the oxygen components,and the hydrogen escaped into space.
• C)It all evaporated into space due to the intense daytime heat of 470°C.
• D)Scientists are still trying to determine this.

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Definitions:

Alternating Series

A series in mathematics where the terms alternately change their signs between positive and negative.

Sum

The total amount resulting from the addition of two or more numbers, quantities, or items.

Arithmetic Sequence

A sequence of numbers in which each term after the first is obtained by adding a constant to the preceding term.

Common Difference

The gap between consecutive numbers in an arithmetic progression.