Why is Greenland cold enough to have an ice sheet, while North America is not?

North America is hotter than green land

Explanation:

because green land is in the south and north America is in the north and the south is cold and the north is hot

The majority of Greenland is much further away from the equator than North America, causing the temperatures to drop to the point where an ice sheet is created. The further away a country is away from the equator, the less direct rays from the sun hit it. Countries closer to the equator are hit by more direct rays.

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i dont know

explanation:

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.