EARTH SCIENCE

3. What is the difference between intrusive and extrusive igneous rocks?

• a) Intrusive rocks form on Earth's surface, extrusive form underground

• b) Intrusive rocks form underground, extrusive form on Earth's surface

• c) Both form at Earth's surface

• d) Both form underground

1. What are the three main types of rocks?

• a) Igneous, Sedimentary, Metamorphic

• b) Igneous, Fossil, Sedimentary

• c) Sedimentary, Metamorphic, Fossil

• d) Igneous, Fossil, Lava

2. How are igneous rocks formed?

• a) By the compression of sediments

• b) By cooling and solidification of molten magma or lava

• c) Through evaporation of water

• d) By intense pressure and heat on other rocks

4. Give an example of a sedimentary rock:

• a) Granite

• b) Basalt

• c) Limestone

• d) Marble

5. How do metamorphic rocks form?

• a) From the accumulation of sediment in water

• b) From cooling magma

• c) From pre-existing rocks subjected to heat and pressure

• d) From crystallization in volcanic regions

6. What is the difference between foliated and non-foliated metamorphic rocks?

• a) Foliated rocks have layers or bands, non-foliated do not

• b) Non-foliated rocks have layers, foliated do not

• c) Foliated rocks form from magma, non-foliated from sediment

• d) Non-foliated rocks are sedimentary, foliated are igneous

7. What processes are involved in the formation of sedimentary rocks?

• a) Melting and cooling

• b) Compaction and cementation

• c) Erosion and melting

• d) Heat and pressure

8. What are clastic sedimentary rocks?

• a) Rocks made from dissolved minerals

• b) Rocks formed from fragments of other rocks

• c) Rocks formed from volcanic ash

• d) Rocks formed by chemical precipitation

9. How does limestone transform into marble through metamorphism?

• a) By melting and solidifying again

• b) By being subjected to heat and pressure

• c) By weathering and erosion

• d) By dissolving in water

10. What role does heat and pressure play in the formation of metamorphic rocks?

• a) It melts the rock completely

• b) It breaks down the rock into sediments

• c) It changes the mineral composition and texture of the rock

• d) It cools the rock quickly