Define the following:

1. Aqueous rocks

2. ‘Pacific ring of fire’

3. Mechanical weathering

4. Carbonaceous rocks

5. Tsunami

6. Continental glacier

7. Hot spring

1. Aqueous rocks – The rocks that are formed because of water action, like the rocks, which contains sediments, are called aqueous rocks.

The deposit of sedimentary rocks when formed in water bodies like lake, sea and ocean beds, are known as aqueous rocks.

2. ‘Pacific ring of fire’- The area in the Pacific Ocean basin where frequent earthquake and volcanoes occurs is known as the ‘Pacific ring of fire’.

The Pacific Ring of Fire is an arc around the Pacific Ocean, where earthquakes and volcanoes are commonly found to occur.

3. Mechanical weathering- The type of weathering in which large rocks are broken in the smaller pieces is known as mechanical weathering. This form of weathering do not change the chemical nature for the rock.

The type of weathering where the rocks are broken and disintegrated without any chemical alteration is called physical or mechanical weathering. The weathering processes included in this type are Granular disintegration, Block disintegration, and Exfoliation. The agents of mechanical weathering are temperature, wind, frost, etc.

4. Carbonaceous rocks- The types of rocks, which are formed by the deposition of sea plants, which were buried long time ago, are known as carbonaceous rocks. The carbon is the main ingredient of the carbonaceous rocks.

Carbonaceous rocks are those that are formed by the accumulation of remains of organisms. Pressure exerted by overlaying deposits, as well as the large geological time have transformed these organic material into such rocks.

5. Tsunami- The fast moving waves in the ocean bed, which are the result of the severe earthquake or volcanic eruptions, are known as Tsunamis.

Tsunami, a Japanese term for ‘harbor wave’, is a seismic sea wave, or rather a series of waves caused by the displacement of a large volume of water in an ocean, sea or lake, due to seismic activities (earthquake) in the seabed.

6. Continental glacier- The glacier that covers the significant part of the continent are known as continental glacier. These glaciers are much larger than the alpine glaciers.

Glaciers - slow moving, compacted mass of ice and snow – are divided into two based on location factors. Among them continental glaciers comprise the extensive ice sheets found in polar regions.

7. Hot Spring- The place where the ground water gets heated by the energy released from the earth is known as the hot spring. This spring also grabs the tourist attraction to the larger extent.

Hot spring are natural fountains of warm or hot water that are usually found near the volcanic regions. It is also called as thermal spring. They make for great tourist destinations.