Question

AMERICAN LYCETUFF
Junior & Upper School
22
Grond
D1 VIII
Q#5:
15
to electricity supply
to vacuum pump
Nawaz has put an electric bell in an airtight glass jar.
The bell and jar are shown in the picture below. At first,
Nawaz could hear the bell ringing. But when his teacher
pumped the air out of the jar, Nawaz could not hear the
pell.
electric b
1) What is a vacuum?
bell jar
plate​

Answer 1

Explanation:

Mutation is the change in our DNA base pair sequence due to various environmental factors such as UV light, or mistakes during DNA replication.”