1. TRUE OR FALSE. Write TRUE if the statement is correct. Otherwise, write FALSE.
1. Heat moves from hot to cool regions,
2. Convection in Earth's crust is the up and down movement of plastic-like matenal within the layer
3. Farth keeps a nearly steady temperature because it makes heat in its interior
4. The formation and movement of magma under the Earth's crust is known as metamorphism.
5. Magma is primarily a very hot liquid from melting of rocks in the asthenosphere and lower part
of the crust.
6. Radioactivity is Earth's interior major source of heat.
7. Convection occurs only in gases.
8. Uranium produces heat when it decays.
9. When conduction occurs, warm particle rises and cold particle sinks.
10. Heat exchange between the sun and the Earth takes place through radiation
11. Metamorphism is the change in the structure and form of rocks due to intense heat and
pressure.
12. Regional metamorphismn results to the formation of non-foliated rocks.
13. Contact metamorphism results to the formation of foliated rocks.
14. Pressure, heat and chemically active fluids are agents of metamorphism.
15. When rocks are buried deep down, temperature and pressure increases.
16. Mafic igneous rocks contains the least amount of silica.
17. Peridotile and diorite are ultrarafic igneous rocks.
18. Aphanitic texture results from rapid cooling of molten rocks.
19. Obsidian exhibits a glassy texture.
20. Felic igneous rocks have very low silica content.
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Answer:
1. TRUE
2.FALSE
3.TRUE
4.TRUE
5.TRUE
6.TRUE
7.FALSE
8.TRUE
9.TRUE
10.TRUE
Explanation:
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