Question

which requires liquid water, has ever existed on mars. she found these two sources.
order for there to ever have been life on mars, there had to have been liquid water. mars has polar ice caps and cloud cover. it has
ver beds and rock types that form only when water is present. it has seasonal weather patterns, volcanoes, and canyons. scientists at
the national aeronautics and space administration (nasa) theorize that if mars now has or ever had liquid water, microscopic life forms
could remain on the surface of mars.

source 1

janet wants to know if any form of life has ever existed on mars.
how do the two sources differ on where evidence of life would be located on mars?
○ 1. source 1 says that nasa has discovered life on mars. source 2 says mars has had water in th
○ 2. source 1 says that moisture from clouds is a water source on mars. source 2 s
○ 3. source 1 says that evidence of life would be found below the surf on mars.
○ 4. source 1 says that any evidence of water on below the surface.

source 2

Explanation:

To solve this, we analyze each option by comparing Source 1 and what we can infer about Source 2 (even though Source 2's full text is partially visible, we focus on Source 1's claims and the option's logic):

Analyzing each option:

• Option 1: Source 1 does not say NASA discovered life on Mars (it theorizes about water for life). Eliminate.
• Option 2: Source 1 focuses on liquid water for life, not "moisture from clouds" as a water source. Eliminate.
• Option 3: Source 1 states "for there to ever have been life on Mars, there had to have been liquid water" and NASA theorizes about liquid water on the surface. If we assume Source 2 (partially) discusses subsurface water, this option aligns with "evidence of life would be found below the surface" (matching the idea of water location affecting life evidence).
• Option 4: Source 1 discusses liquid water on the surface (e.g., "if Mars now has or ever had liquid water, microscopic life forms could remain on the surface"), not that evidence of water would be below. Eliminate.

Answer:

1. Source 1 says that evidence of life would be found below the surface on Mars.