Answer:
1. What happens when air is heated or cooled? ... So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Step-by-step explanation:
Hope this helps
Answer:
it's not a regular polygon
Step-by-step explanation:
a central angle of a regular polygon is 360/n
360/n=35
n=360/35=10.28
it's not a regular polygon
Answer:
I think 2+2=4
Step-by-step explanation:
20+2=22 tho
six million, thirty thousand <span>6, 030, 000 expressed in scientific notation
</span>
<span>6.03×10^6.</span>