Answer:
C
Explanation:
Gravity will always be attractive because it pulls things not push. For example gravity pull people to earth, that is why we don't float.
Martian water may contain salts, which lowers the freezing temperatures of the water
How is Mars atmosphere?
The atmosphere of Mars is much thinner than Earth’s. The Red Planet's atmosphere contains more than 95% carbon dioxide and much less than 1% oxygen. People would not be able to breathe the air on Mars.
It is possible that liquid water could also exist on the surface of Mars through the formation of brines suggested by the abundance of hydrated salts. Brines are significant on Mars because they can stabilize liquid water at lower temperatures than pure water on its own.
Thus, in the extreme and uneventful conditions of saturation by mixtures of salts, liquid water can be stable on Mars between 180 K and at least up to 298 K.
learn more about Mars from here: brainly.com/question/28197278
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The answer for question 2 i guess it’s c
The force exerted between 2 point charges is directly proportional to the product of their strengths, is inversely proportional to the square of the distance between them and is inversely proportional to the absolute permittivity of the surrounding mediums.
I hope that helps somewhat, I'm only kind of sure that could be correct
Answer:
The correct option is B. an alpha particle.
Explanation:
When ²³Na is bombarded with protons , ²⁰Ne and one alpha particle is released.
The reaction is as follows:
Therefore, an alpha particle and ²⁰Ne are released when ²³Na is bombarded with protons.