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Question 1 of 5
1. Question
1 pointsMost Rainforests are structured in different layers. Which of the following factors are responsible for this?
1. Water
2. Sunlight
3. Air circulation
Select the correct answer codeCorrect
All 1, 2 and 3 are correct.
Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor. Each layer has unique characteristics based on differing levels of water, sunlight, and air circulation. While each layer is distinct, they exist in an interdependent system: processes and species in one layer influence those in another.Incorrect
All 1, 2 and 3 are correct.
Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor. Each layer has unique characteristics based on differing levels of water, sunlight, and air circulation. While each layer is distinct, they exist in an interdependent system: processes and species in one layer influence those in another. -
Question 2 of 5
2. Question
1 pointsConsider the following statements regarding Foreshocks and earthquake swarm.
1. Foreshocks are mild earthquakes that precede larger earthquakes in the same location.
2. An earthquake cannot be identified as a foreshock until after a larger earthquake in the same area occurs.
3. An earthquake swarm is a sequence of seismic events occurring in a local area within a relatively short period of time.
4. Foreshocks and earthquake swarm are mainly clustered in the north-eastern and north-western Himalayan region.
Which of the above statements is/are correct?Correct
1, 2, 3 and 4 are correct.
The recent earthquakes in different parts of India, albeit of small magnitudes, have occurred due to foreshocks and swarms, a top official of the Geological Survey of India (GSI) said.
Foreshocks — mild tremor preceding earthquakes — or swarm activities — series of earthquakes — indicate release of tectonic stress and strain during the continuous deformation process, and a detailed study of these jolts could help predict if a significant seismic event is in store.
These minor earthquakes are mainly clustered in the north-eastern and north-western Himalayan region, around the Delhi-National Capital Territory (NCT), western Gujarat and Western Maharashtra areas which have been
demarcated as seismic zones IV and V.Incorrect
1, 2, 3 and 4 are correct.
The recent earthquakes in different parts of India, albeit of small magnitudes, have occurred due to foreshocks and swarms, a top official of the Geological Survey of India (GSI) said.
Foreshocks — mild tremor preceding earthquakes — or swarm activities — series of earthquakes — indicate release of tectonic stress and strain during the continuous deformation process, and a detailed study of these jolts could help predict if a significant seismic event is in store.
These minor earthquakes are mainly clustered in the north-eastern and north-western Himalayan region, around the Delhi-National Capital Territory (NCT), western Gujarat and Western Maharashtra areas which have been
demarcated as seismic zones IV and V. -
Question 3 of 5
3. Question
1 pointsMost volcanoes and earthquakes in the world are located at
Correct
Plate margins witness several plate collisions, sliding, transformation etc that result into volcanism or earthquakes.
Most of them are found in the Ring of Fire.
Some earthquakes also occur within the plates but not as frequently as on the plate margins.Incorrect
Plate margins witness several plate collisions, sliding, transformation etc that result into volcanism or earthquakes.
Most of them are found in the Ring of Fire.
Some earthquakes also occur within the plates but not as frequently as on the plate margins. -
Question 4 of 5
4. Question
1 pointsConsider the following statements regarding Earthquakes and Volcano.
1. Earthquake normally occurs along with the volcanoes.
2. Volcanoes occur only where ocean crust collides with continental crust.
3. Volcanoes are one of the best sources of sulphur.
Select the correct answer codeCorrect
1 and 3 are correct.
Earth quakes are usually associated with volcanoes, since both are related to plate movements.
Volcanoes can also happen with ocean-ocean crust collision. Best example is South East Asian Archipelago.
Volcanoes are one of the best sources of sulphur, which is not abundant on other continental landforms.Incorrect
1 and 3 are correct.
Earth quakes are usually associated with volcanoes, since both are related to plate movements.
Volcanoes can also happen with ocean-ocean crust collision. Best example is South East Asian Archipelago.
Volcanoes are one of the best sources of sulphur, which is not abundant on other continental landforms. -
Question 5 of 5
5. Question
1 pointsThe thickness of the troposphere is greater at the equator rather than at the poles because of
1. Rotation of the earth pushes the atmosphere near equator to greater heights
2. Convection currents leading to thermal expansion of the atmosphere at the equator
Which of the above statements is/are correct?Correct
Both 1 and 2 are correct.
The troposphere is thicker at the equator than at the poles because the equator is warmer. The convection currents of air expand the thickness of the troposphere (atmosphere).
Thus the simple reason is thermal expansion of the atmosphere at the equator and thermal contraction near the poles.
Also, the rotation of the earth causes centrifugal force which is strongest near the equator and pushes the atmosphere to greater heights.
The thickness of the troposphere also varies with season. The troposphere is thicker in the summer and thinner in the winter all around the planet.Incorrect
Both 1 and 2 are correct.
The troposphere is thicker at the equator than at the poles because the equator is warmer. The convection currents of air expand the thickness of the troposphere (atmosphere).
Thus the simple reason is thermal expansion of the atmosphere at the equator and thermal contraction near the poles.
Also, the rotation of the earth causes centrifugal force which is strongest near the equator and pushes the atmosphere to greater heights.
The thickness of the troposphere also varies with season. The troposphere is thicker in the summer and thinner in the winter all around the planet.
Leaderboard: 27th Nov 2023 | Prelims Daily with Previous Year Questions
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