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1) They put on fat which is a good insulator and allows the animal to retain its heat.

2) The animal in putting on weight will become larger and have a smaller surface area to volume rati...

Reactivity increases down the group.

This is because the outer electron in each atom is further away from the nucleus as you go down the group and so the electrostatic forces between the ...

Too calculate this we need to increase to total amount of money in the bank by 3% year on year for 6 years.

Year 0   £500

Year 1   £500 x 1.03 = £515

Year 2   ...

A dative covalent bond, or coordinate bond, is a bond where there is 1 pair of shared electrons between two atoms. The difference relative to a covalent bond is that in a dative covalent bond these electr...

Let me rephrase this question slightly:
 

"Find all the roots of the equation x^n - 1 = 0."

We know by the fundamental theorem of algebra that an nth degree ...