Answer:
Drawing of the structure of compounds showing atoms.
Explanation:
Making structure of the compound is the easiest way to show the atoms present in the compounds or to express chemical formula of the compound because in the structure the atoms from which the compound is formed is clearly shown so draw the structure of the compound is the best and quick way to show the chemical formula of the compound.
They would know if they see anything like traces of water or anything else that would be nessecary for a living organism to have. They look for these with technology like the hubble telescope as well as the drone on Mars to gather as much information as possible.
Answer: B.
Explanation: Cytosis in this context is the taking in, and releasing of various nutrients, proteins, toxins, etc. in and out of the cell. This is facilitated by the plasma membrane because it's our wall that surrounds the cell deciding who goes in and who goes out.
If enough ejecta (mainly ash) is sent into the upper atmosphere, the dust particles will block solar energy causing a decrease in temperature. This has happened in the past. Look for the year without summer caused by a volcanic eruption.