Select the correct statements :
Anonymous Quiz
26%
A. Only 1 and 2
28%
B. Only 2 and 3
23%
C. Only 1 and 3
23%
D. 1,2 and 3
Q.2. In the context of Earth's early formation, which of the following best describes the process of differentiation ?
A. The breakdown of rocks on Earth's surface due to weathering and erosion.
B. Separation of heavier and lighter materials inside the Earth, forming layers like the crust, mantle, and core.
C. The large-scale movement of Earth's lithospheric plates over the asthenosphere, resulting in the drifting of continents over geological time.
D. The process by which compressional forces between converging tectonic plates result in the uplift and folding of the Earth's crust to form mountain ranges.
A. The breakdown of rocks on Earth's surface due to weathering and erosion.
B. Separation of heavier and lighter materials inside the Earth, forming layers like the crust, mantle, and core.
C. The large-scale movement of Earth's lithospheric plates over the asthenosphere, resulting in the drifting of continents over geological time.
D. The process by which compressional forces between converging tectonic plates result in the uplift and folding of the Earth's crust to form mountain ranges.
Q.3.Which of the following statements correctly explains the nature and behaviour of comets ?
1. Comets are made mainly of 'ices', that is ordinary water ice mixed with frozen gases such as methane, carbon dioxide and ammonia.
2. Comets develop a glowing tail when they approach the Sun as the heat causes frozen gases to condense from the comet's surface leading to a perceptible glowing tail.
1. Comets are made mainly of 'ices', that is ordinary water ice mixed with frozen gases such as methane, carbon dioxide and ammonia.
2. Comets develop a glowing tail when they approach the Sun as the heat causes frozen gases to condense from the comet's surface leading to a perceptible glowing tail.
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Choose the correct option ?
Anonymous Quiz
8%
A. Only 1
23%
B. Only 2
65%
C. Both 1 and 2
3%
D. Neither 1 nor 2
Q.1. With reference to the evolution of Earth’s atmosphere and hydrosphere, consider the following statements :
1. The primordial atmosphere of Earth, mainly composed of hydrogen and helium, was lost due to solar wind activity.
2. The process of degassing released gases like water vapour and carbon dioxide from Earth's interior during its cooling phase.
3. Oceans were formed due to condensation of water vapour, and were established within 500 million years of Earth’s formation.
4. Substantial accumulation of oxygen in the atmosphere began only after oceans were saturated through photosynthesis.
1. The primordial atmosphere of Earth, mainly composed of hydrogen and helium, was lost due to solar wind activity.
2. The process of degassing released gases like water vapour and carbon dioxide from Earth's interior during its cooling phase.
3. Oceans were formed due to condensation of water vapour, and were established within 500 million years of Earth’s formation.
4. Substantial accumulation of oxygen in the atmosphere began only after oceans were saturated through photosynthesis.
Choose the correct statements ?
Anonymous Quiz
14%
A. 1 and 2 only
34%
B. 1, 2 and 3 only
21%
C. 2, 3 and 4 only
31%
D. 1, 2, 3 and 4
Q.2. With reference to the internal structure of the Earth, consider the following statements :
1. The crust is brittle and its thickness is greater beneath the oceans than under continents.
2. The lithosphere includes both the crust and the uppermost part of the mantle, and its thickness may vary from 10 to 200 km.
3. The Outer core is in solid state and is said to be responsible for earth's magnetic field.
4. The lower mantle lies beneath the asthenosphere and is in solid state.
1. The crust is brittle and its thickness is greater beneath the oceans than under continents.
2. The lithosphere includes both the crust and the uppermost part of the mantle, and its thickness may vary from 10 to 200 km.
3. The Outer core is in solid state and is said to be responsible for earth's magnetic field.
4. The lower mantle lies beneath the asthenosphere and is in solid state.
How many of the above statements are correct ?
Anonymous Quiz
10%
A. Only one
54%
B. Only two
26%
C. Only three
10%
D. All four
Q.3. Consider the following :
1. Pyroclastic debris.
2. Ash and dust
3. Nitrogen compounds.
4. Sulphur compounds
5. Minor amounts of Hydrogen and Argon
1. Pyroclastic debris.
2. Ash and dust
3. Nitrogen compounds.
4. Sulphur compounds
5. Minor amounts of Hydrogen and Argon
How many of the above are products of during a volcanic eruption ?
Anonymous Quiz
10%
A. 1, 2 and 4 only
17%
B. 1, 2, 4 and 5 only
14%
C. 2, 3, 4 and 5 only
59%
D. 1, 2, 3, 4 and 5