Answer:
C.
crust, mantle, outer core, inner core
Explanation:
inner core, outer core, mantle, crust (Edgenuity)
b. helium
c. carbon
d. hydrogen
A
It's autumn in the Northern Hemisphere.
B It's spring in the Northern Hemisphere.
C
It's summer in the Northern Hemisphere.
D
It's winter in the Northern Hemisphere.
During spring in the Southern Hemisphere, it is autumn in the Northern Hemisphere due to the tilt of the Earth's axis.
When it's spring in the Southern Hemisphere, it is autumn in the Northern Hemisphere. This is due to the tilt of Earth's axis. While it's warming and flowers are blooming in the lower half of the world, the upper half is cooling down and leaves are changing colors. This is why when Australia is preparing for longer, sunnier days in September, the United States is gearing up for shorter, cooler ones.
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b. one revolution of the moon around the Earth
c. one period between two high tides
d. one period between two full moons