Answer:
all
that include
Explanation:
There are two prevailing theories: One is that the Earth held onto some water when it formed, as there would have been ice in the nebula of gas and dust (called the proto-solar nebula) that eventually formed the sun and the planets about 4.5 billion years ago.
<span>Now we will explore the five
structural zones. The Earth's structural zones, also called the S-Zones, are as
follows: 1.the lithosphere 2.asthenosphere 3.mesosphere 4.inner core and 5.the
outer core. Over the years, scientists have measured seismic waves from
earthquakes. These waves have helped scientists to learn more about the inside
of our planet. The lithosphere is part of the crust and the upper mantle. The
prefix "lithos" is Greek for "stone" or "rock."
This layer is solid and the most rigid of the other layers. It is about 15 to
300 kilometers thick. The asthenosphere lies below the lithosphere. This layer
is about 200 kilometers thick and contains hotter, softer rock that flows like
lava. Its prefix "asthenes" is Greek for the word "weak."
Keep in mind; it is not as weak as a brittle piece of wood. However, it is
weaker than the other layers. The mesosphere or "middle layer" is
found at the lower part of the mantle. Scientists believe it is solid rock. If
you travel farther into the center of the Earth, you will come to the inner and
outer cores. The outer core, which is about 2,300 kilometers thick, is located
about 2,900 kilometers below the surface. However, because the scientists have
not seen this area, it is believed that the outer core is made of a dense liquid. The
inner core is a solid ball that is about 2,400 kilometers in diameter.
Scientists believe the inner core is made of solid, dense nickel and iron. The
inner and outer cores constitute about 1/3 of the Earth's mass.</span>
I think its china but I am not sure
Answer:
grew crops as a food source
