5
C.Answer in one or two sentences,
1. Name the three layers of the Earth
2. What is the composition of the mantie?
3. How is the inner core different from the outer
core?
4. What are intrusive rocks?
5. Which is the main mineral used in the production
of steel?
Answers
Answer:
a. core,crust and mantle
Answer:
answer 1
: the crust, the mantle and the core. This is the outside layer of the earth and is made of solid rock, mostly basalt and granite. There are two types of crust; oceanic and continental.
answer 2
Common silicates found in the mantle include olivine, garnet, and pyroxene. The other major type of rock found in the mantle is magnesium oxide. Other mantle elements include iron, aluminum, calcium, sodium, and potassium.
answer 3
The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometers (758 miles). ... However, unlike the outer core, the inner core is not liquid or even molten. The inner core's intense pressure—the entire rest of the planet and its atmosphere—prevents the iron from melting.
answer 4
Intrusive rock is formed when magma penetrates existing rock, crystallizes, and solidifies underground to form intrusions, for example plutons, batholiths, dikes, sills, laccoliths, and volcanic necks.
answer 5
Magnetite
Magnetite and goethite are minerals that contain a lot of iron and are used to make steel. Steel is mixed with chromium to stop it from rusting. Chromium comes from the mineral chromite.