1. Some places we have seen evidence of water in other places in the solar system include:
- Mars: There is evidence of water ice on Mars, as well as ancient river beds and lake beds.
- Europa: One of Jupiter's moons, Europa, is believed to have an ocean of liquid water beneath its icy surface.
- Enceladus: A moon of Saturn, Enceladus, has geysers that eject water vapor and ice particles into space, indicating a subsurface ocean.
2. The three conditions that allow life to sustain itself on Earth are:
- Presence of liquid water: Water is essential for all known forms of life to exist.
- Suitable temperature range: Life on Earth thrives in a moderate temperature range, allowing for liquid water to exist.
- Presence of organic molecules: Organic molecules, such as amino acids and DNA, are essential building blocks for life as we know it.
3. When comparing Earth’s, Venus’s, and Mars’s ability to sustain life:
- Earth has a perfect balance of the three conditions needed for life, making it a habitable planet with a diverse range of life forms.
- Venus is too hot and has a thick, toxic atmosphere, making it inhospitable for life as we know it.
- Mars, while having evidence of past water and some potential for current microbial life, lacks a thick atmosphere and has a harsh environment with high levels of radiation, making it challenging for complex life forms to thrive.
answer each Identify some places we have seen evidence of water in other places in the solar system.
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QUESTION 2
Summarize the three conditions that allow life to sustain itself on Earth.
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QUESTION 3
Compare Earth’s, Venus’s, and Mars’s ability to sustain life.
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1 answer