The electrons in the outermost shell of the covalent compounds are shared by nearby atoms. As there are no free electrons for conducting electricity, the covalent compounds are perfect insulators at absolute zero. As the temperature increases, some electrons move from valence band to conduction band. This gives rise to conductivity. But as the numbers of charge carriers are very low, covalent compounds are poor conductors. On the other hand metals are good conductors cause of their bonding. Metallic bonding consists of a sea of electrons rather than discreet bonds. The free electrons are able to move freely. Since electricity and heat need electrons to move, the bonding promotes conductivity.
Answer:
Because bananas are a good source of potassium and magnesium. And milk gives you calcium which both help ease and relieve muscle cramps.
The primary source of energy that drives convection within the atmosphere and oceans is the sun.
Answer:
The water cycle is not a nutrient cycle
Explanation:
Because it has no sub chemicals. There is no nutrinites in water no caliores or protein. Water is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance. It has no nuances to it. It is bassically just water
