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Hydrosphere Class 8. We covered all the Hydrosphere Class 8 in this post for free so that you can practice well for the exam.
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Hydrosphere Class 8 Objective for Students
Identify the ridge that stretches 64,000 km in length and 2,000–2,400 km in width, passing through the North and South Atlantic, continuing through the Indian Ocean, and extending from central Australia to Antarctica:
a) Socotra-Lakshadweep: Changos Ridge
b) Pacific: Antarctica Ridge
c) Dolfin: Challenger Ridge
d) Mid-Oceanic Ridge
Option d – Mid-Oceanic Ridge
Where is the ‘Ninety East Ridge’ located?
a) Pacific Ocean
b) Indian Ocean
c) Atlantic Ocean
d) Arctic Ocean
Option b – Indian Ocean
The gravitational tension of water in the soil is approximately:
a) Below 1/3 Atmosphere
b) 1.25 Atmosphere
c) 5 Atmosphere
d) 15 Atmosphere
Option a – Below 1/3 Atmosphere
The largest store of freshwater on Earth is found in:
a) Rivers
b) Lakes and streams
c) Glaciers and mountains
d) Underground water
Option c – Glaciers and mountains
Of the remaining freshwater after ice caps and glaciers, the largest portion exists as:
a) Moisture and clouds in the Atmosphere
b) Freshwater lakes and rivers
c) Groundwater
d) Soil moisture
Option c – Groundwater
The most extensive feature of the ocean floor is:
a) Ocean deeps
b) Oceanic slope
c) Oceanic shelves
d) Deep sea plains
Option d – Deep sea plains
Consider the following statements: 1. Less than 1% of the total water on Earth is available as usable freshwater. 2. About 95% of the planet’s freshwater is locked in polar ice caps and glaciers. Which statement(s) is/are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
Option a – Only 1
At sea level, the point closest to the center of the Earth is:
a) North Pole
b) Tropic of Capricorn
c) Tropic of Cancer
d) Equator
Option a – North Pole
The datum line is:
a) A horizontal reference line at sea level from which heights and depths are measured
b) The mean of primary and secondary data
c) The International Date Line
d) An imaginary line passing through the zero-degree meridian
Option a – A horizontal reference line at sea level from which heights and depths are measured
Which of the following seas is the deepest?
a) South China Sea
b) Bering Sea
c) Mediterranean Sea
d) Japan Sea
Option a – South China Sea
Approximately what fraction of the Earth’s surface is covered by water?
a) One-fourth
b) One-half
c) Two-thirds
d) Three-fifths
Option c – Two-thirds
The largest component of the Earth’s hydrosphere is:
a) Atlantic Ocean
b) Indian Ocean
c) Pacific Ocean
d) Southern Ocean
Option c – Pacific Ocean
We covered all the hydrosphere Class 8 above in this post for free so that you can practice well for the exam.
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