Question 1
The Sun radiates most of its energy in three regions of the electromagnetic spectrum.
In the pie chart, region 1 is infrared radiation and region 2 is visible radiation.
What is region 3 ?
A
microwave
B
radio
C
ultraviolet
D
X-ray
Question 2
The Sun transfers energy to the Earth through electromagnetic radiation.
What are two of the parts of the electromagnetic spectrum to which most of the energy belongs?
A
gamma rays and X-rays
B
infrared radiation and visible light
C
microwaves and visible light
D
radio waves and microwaves
Question 3
Which statement about the Sun is correct?
A
The Sun is a dwarf star consisting mostly of hydrogen and oxygen.
B
The Sun is a giant star consisting mostly of helium and carbon dioxide.
C
The Sun is a medium-sized star consisting mostly of hydrogen and helium.
D
The Sun is a medium-sized star consisting mostly of nitrogen and oxygen.
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