Give a reason for each of the following:

1. Igneous rocks are also called Primary rocks
2. Fossils are present in Sedimentary rocks
3. The core of the Earth is in a semi—solid state

Define the following terms:

1. Epicentre
2. Focus

Give a geographical reason for each of the following:

1. Volcanic activity and earthquakes occur in the same belt.
2. All rivers do not form a delta.
3. Chemical weathering is more common in the tropical regions.

Draw a neat well labelled diagram of the Rock Cycle.