"it's" is the correct form
Answer:
3
Explanation:
They are asking for major groups, there are nine groups total, but there are 3 major groups
Answer:
"light bulb giving off heat"
"feeling heat while standing by campfire"
"sun heating a car"
Explanation:
Radiations is one of the modes of heat transfer. Radiation involves the transfer of heat without a material medium for propagation of heat. In other words, radiation does not need matter to move from one point to another.
The following are examples of radiation;
"light bulb giving off heat"
"feeling heat while standing by campfire"
"sun heating a car"
Answer:
Have you make a speech in public before? It isn't easy!
