Which of the following statements related to extrusive igneous rock is correct?

1. They are formed below the earth surface
2. They have fine crystals
3. Limestone is the best example of this rock
4. They are formed by the slow cooling of magma

Which of the following is the metamorphosed form of Sandstone?

1. Slate
2. Gneiss
3. Quartzite
4. Marble

Sedimentary rocks are called stratified rocks as

1. They are formed by the accumulation of lava
2. They are formed by the decomposition of rocks
3. They are deposited in layers
4. They are foliated

Which of the following statements is correct?

1. Igneous rocks are generally pervious in nature.
2. Sedimentary rocks have pore spaces.
3. Foliation is observed in igneous rocks.
4. Fossils are found in igneous rocks.