World & Physical Geography MCQs

Notes:
The nebular hypothesis is model which explain the formation and evolution of the Solar System. It suggests that the Solar System formed from gas and dust orbiting the Sun.

Notes:
Shimla is the place among the options where water boils at low temperature. At higher altitudes, air pressure is lower. When atmospheric pressure is lower, such as at a higher altitude, it takes less energy to bring water to the boiling point. Less energy means less heat, which means water will boil at a lower temperature at a higher altitude.

Notes:
The correct answer is the Equator. A geosynchronous orbit has an orbital period of 24 hours, matching the Earth’s rotation. For a satellite to appear stationary relative to the Earth’s surface, it must be positioned directly above the Equator at an altitude of approximately 35,786 kilometers (22,236 miles). This allows the satellite to maintain a fixed position over a specific point on the Earth’s surface, which is essential for communication and weather satellites.

Notes:
Hamza River is a basically underground slow flowing aquifer that is around 6000 kms long at depth of 4 kilometers below the amazon basin. Hamza river and Amazon River make a geologically unusual instance of a twin-river system flowing at different levels of the Earth’s crust.

Notes:
Most coastal areas experience two high and two low tides per day. One of these high tides is at the point on the earth which is closest to the moon (sub lunar) and other high tide is at the opposite point on the earth (antipodal). One tidal cycle comprises two high tides and two low tides. One tidal cycle completes in 24 hours and 50.4 minutes. This is because of the revolution of Moon around the earth and both earth’s rotation and moon revolution are in same direction. (Moon is not stationary, so there is a difference, if moon were stationary the high tides would have occurred exactly in 12 hours). The high tides occur at an interval of 12 hours and 25.2 minutes. This means that if there is a high tide is at 7.00 am, next high tide would be at 7.25 pm and next would be at 7.50 am, and so on. The time difference between two high tides is called “Tidal Interval”. The tidal cycle in this pattern is called semidiurnal. However, most of the enclosed water bodies or away from the open ocean such as Caribbean Sea or Caspian Sea, there are only one high tide and one low tide. This pattern is called Diurnal tides. At the coast of the oceans, there may be two high tides, of unequal length. This is called Mixed Tides.

Notes:
The “harvest moon” is a traditional term for the full moon occurring during autumn, in the northern hemisphere usually on September 22 or 23.

Notes:
Polar Vortex is a whirling cold winds present at both North Pole and South Pole.
It results because of the increased temperature difference between the dark, frigid Arctic and the warm tropics. There are two vortices, one in the layer of the upper atmosphere known as the stratosphere and one in the lower section, where our weather happens, called the troposphere. These two features interact with each other and can affect the meteorological goings-on outside of the Arctic.

Notes:
K2 also known as Mount Godwin-Austen or Chhogori at 8,611 metres (28,251 ft) above sea level. K2 is known as the Savage Mountain due to the extreme difficulty of ascent. It has the second-highest fatality rate.

Notes:
At 90° angular separation from the Sun, you on the Earth see half of the Moon’s illuminated side and half of its night side. The phase is called a quarter phase because you can see a quarter of the Moon’s entire surface (and 90 degrees is one-quarter of 360 degrees).

Notes:
In the given diagram of North America and South America
‘a’ marked river is Yukon
‘b’ marked river is Mackenzie
‘c’ marked river is St. Lawrence
‘d’ marked river is Orinoco