Will give brainliest

a star appears to be red in the night sky. is the star traveling toward the earth or away from the earth? how do we know this?

explain

answer: away from the earth

explanation: when the star appears red that means its moving further from the earth

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answer:

explanation:

if that star is hurtling away from us, all those absorption lines undergo a doppler shift and move towards the red part of the rainbow – a process called redshifting. if the star turns around and now comes flying towards us, the opposite happens. this is called, not surprisingly, blueshifting.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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measuring things 1 litre of water