Answer:
Explanation:
In terms of old school electron shells - One Hydrogen atom on it's own has an empty shell, and therefore to fill the shell it needs another electron. In the case of Helium, it already has two electrons at the same energy level - so it cannot accept any new electrons i.e. it cannot form new bonds.
Diffrent type of biome because we do not live in a rainforest or desert
Sex linkage is the phenotypic expression of an allele that is dependent on the gender of the individual and is directly tied to the sex chromosomes. ... In mammals the homogametic sex is female (XX) and the heterogametic sex is male (XY), thus the sex linked genes are carried on the X chromosome.
The Earth's crust is the outer layer of the Earth and is made of solid rock. It is also the thinnest layer. As well known, the crust makes up 1% of the Earth. The crust of the Earth is broken into pieces called plates.
The temperature ranges from 0 - 700 Celsius. The Earth's crust is often compared to an apples skin, this because of it's thickness compared to the other three layers. The average thickness is 6 - 70 km.
