Answer:
Coal mining can compromised a lot of our resources one of it is the soil. It is because it eliminates the nutrients of the soil that can affect the vegetation, it destroys the wildlife and habitat. Also, it changes permanently the topography of the area mined.
Explanation:
edge 2020 just did it !!!
Because of the wind and the cold from ur breath
Answer:
As you go down the periodic table, usually atoms get bigger because n gets bigger (there are electrons in higher shells). Effective nuclear charge does get bigger too going down the periodic table, but this effect is smaller than the change in shell.
Explanation:
The answer is lead.
Every element in Group 14 (Group IVA) has four valence electrons, s^(2)p^(2)<span>.</span>
1. evaporation
2 condensation
3 sublimation
4 t
5 f
6t
7 f
8 f