Questions in "Geography"

What is a biosphere reserve ?

A biosphere reserve is an area of land or water that is protected by law in order to support the conservation of ecosystems, as well as the sustainability of mankind’s impact on the environment. This means that each reserve aims to help scientists and the environmental community figure out how to protect the world’s plant and animal species while dealing with a growing population and its resource needs. These areas were created by the United Nations Educational, Scientific, and Cultural Organization (UNESCO) under a program called Man and the Biosphere (MAB) in 1968. Since its creation, MAB has helped dozens ...

Which planet has more satellites ? Is Jupiter or Saturn

The planet with the most satellites in the Solar System is Jupiter, with a total of 63 confirmed satellites. Eight of Jupiter’s satellites are regular satellites, with four large spherical moons and four smaller moons that orbit closer to Jupiter. Jupiter has an additional 55 tiny irregular satellites. The planet with the second highest number of satellites is Saturn, with 61 satellites.

Why does the sun seem to rise two minutes before the actual sunrise and set two minutes after actual sunset?

When the light rays passes through the atmosphere having layers of different densities and refractive indices, then atmospheric refraction takes place. The actual sunrise takes place when the sun is above horizon. When the sun is just below the horizon, the light rays coming from it , on entering the Earth's atmosphere suffer atmospheric refraction from a rarer to denser medium . so, they bend towards the normal at each refraction. Due to continuous refraction of light rays at each layer, it follows a curved path and reaches the eye of the observer. As a result , we can see ...

Describe about our 9th planet ?

Astronomers are now hunting for another planet in our solar system, a true ninth planet, after evidence of its existence was unveiled on Jan. 20, 2016. The so-called "Planet Nine," as scientists are calling it, is about 10 times the mass of Earth and 5,000 times the mass of Pluto. Planet Nine orbits the sun at a distance that is 20 times farther out than the orbit of Neptune. (The orbit of Neptune is 2.7 billion miles from the sun at its closest point.) The strange world's orbit is about 600 times farther from the sun than the Earth's orbit ...

Why are most of the deserts in the tropics and subtropics located on the western margins of continents?

In the subtropical regions, easterly winds called Trades blow. They are called North-East Trades in Northern Hemisphere and South-East Trades in Southern Hemisphere. These planetary winds blow from the Sub tropical High pressure belts to the Equatorial Low Pressure Belt. So they blow from higher latitude to lower latitude and hence suffer more evaporation than condensation. So, these winds become onshore and moist in the eastern margins of continents where they provide profuse precipitation. But while they cross the continent to reach the western parts, they become offshore and dry and hence do not provide rainfall. So, deserts have formed ...

Why is it that the houses in the Tarai region, Goa and Mangalore have sloping roofs ?

The houses in the Tarai region, Goa and Mangalore have sloping roofs because they get heavy rain during the monsoon season. Water collected on rooftop will eventually weaken them. When there are sloping roofs, the rain water can easily flow off towards the ground or to a receptive unit where water is collected instead of collecting on the rooftop.

What is an equinox ?

An equinox is a day when the sun is in its zenith over the Equator, and the Earth experiences days and nights of generally equal length. There are two equinoxes in a year: around March 21 and around Sept. 22. In the Northern hemisphere, March 21 is the spring or vernal equinox. September 22 is the autumnal equinox. But it's just the opposite in the Southern hemisphere. The Southern hemisphere’s “spring” equinox takes place in autumn.

What is the difference between rotation and revolution ?

When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an object circles an external axis (like the Earth circles the sun) it is called a revolution.

Why there is two hour time lag between Kashmir and Kanyakumari

Kanyakumari is close to the equator, whereas Kashmir is far from the equator. This means that Kanyakumari is at a lesser latitude as compared to Kashmir. Kanyakumari is at 8°N latitude, it is just 8 degrees from the equator. As equator receives direct sunlight, the duration between day and night would hardly be felt at Kanyakumari. On the other hand, Kashmir is at 37°N latitude, which means that it is 37 degrees away from the equator or it is 37 degrees away from the area which receives direct sunlight. So, there would be a difference in the duration of day ...

Why do we see only one side of the moon always?

Only one side of the Moon is visible from Earth because the Moon rotates about its spin axis at the same rate that the Moon orbits the Earth, a situation known as synchronous rotation or tidal locking.

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What is the valency of carbon?

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