Answer:
chemistry is very important because everything you do is chemistry . our body is made up of chemicals . chemicals reactions occurs when be breathe ,eat , etc . All matter is made of chemicals so that chemistry is very important in our life
Answer:

Explanation:
Given
On Earth

On the moon

Required
The astronaut's mass on the moon
The mass of an object do not change base on location
So, if the mass of the astronaut is 80kg on earth, it will be 80 kg on the moon.
Hence:

2^8 = 256 hence use 8 bits
Answer:
Give The Object Or Text You'd Like To Link To A Name.
Take That Name That You've Chosen, And Then Now Insert It To An Opening HTML Anchor Link Tag.
Place That Complete Opening <a> Tag From Before The Text Or Object You Want To Link It To, Then Now Add A Closing </a> tag after.
(Hope this is correct and hope this helped. Sorry if I'm wrong and you get this wrong)