- Electromagnetic radiation
- Geothermal energy
- Gravitational force
- Plate movements
- Rotation of the earth
- Revolution of the earth
Which of the above are responsible for bringing dynamic changes on the surface of the earth?
(a) 1, 2, 3 and 4 only
(b) 1, 3, 5 and 6 only
(c) 2, 4, 5 and 6 only
(d) 1, 2, 3, 4, 5 and 6
Answer: (d)
Option (d) is correct:
Earth’s surface is constantly changing. Wind, water, and ice break down large rocks and move sediments on the surface. It usually takes years for weathering, erosion, and deposition to cause noticeable changes. Some events, though, bring dynamic changes on the Earth’s surface much more quickly, such as:
O Temperature and precipitation are the two important climatic elements that control various processes. Electro-magnetic radiation causes temperature change which induces the metamorphism of rocks.
O Geothermal energy movements cause volcanoes which bring dynamic change on the Earth surface.
O Tides occur due to the gravitational pull of the Moon. Tides cause coastal erosion.
O Earthquakes (plate movements) bring dynamic change on the earth surface.
O Rotation of the Earth is responsible for Day and Night formation that create temperature differences. The Revolution of the Earth is responsible for seasonal changes. Both are responsible for bringing dynamic changes to the surface of the earth.
