World & Physical Geography MCQs

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‘Ecology is defined as the scientific study of the relationship of living organisms with each other and with their environment.’ It has been derived from two Greek words, ‘oikos’, meaning home or estate and ‘logos’ meaning study. Ecology not only deals with the study of the relationship of individual organisms with their environment, but also with the study of populations, communities, ecosystems, biomes, and biosphere as a whole.

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Extrusive igneous rocks are formed by cooling of lava on the earth’s surface.  Extrusive igneous rocks are also called volcanic rocks.
Intrusive igneous rocks are formed when magma solidifies below the earth’s surface.
Deep seated intrusive rocks are termed as plutonic rocks.
Shallow depth intrusive rocks are termed as hypabyssal.

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Pyroclastics are sedimentary clastic rocks. They compose mainly volcanic material. Where the volcanic material has been transported and reworked through mechanical action, such as by wind or water, these rocks are termed volcaniclastic.

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One loses a day when he/she crosses 180 degrees longitude from east to west and gains a day when crosses 180 degrees from west to east.

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Using those measurements, the equatorial circumference of Earth is about 24,901 miles (40,075 km). However, from pole-to-pole — the meridional circumference of the Earth is only 24,860 miles (40,008 km) around. This shape, caused by the flattening at the poles, is called an oblate spheroid.

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The Maasai are a Nilotic ethnic group inhabiting northern, central and southern Kenya and northern Tanzania. They are among the best known local populations internationally due to their residence near the many game parks of the African Great Lakes, and their distinctive customs and dress.

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Asteroids are small and rocky objects that orbit the sun. Asteroids orbit the sun. They are much smaller than planets. There are lots of asteroids in our solar system. Most of them live in the main asteroid belt—a region between the orbits of Mars and Jupiter. Some asteroids are hundreds of miles in diameter, but many more are as small as pebbles. Most asteroids are made of different kinds of rocks, but some have clays or metals, such as nickel and iron.

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The geographical poles of the earth are different from the magnetic poles of the earth. Recently, the magnetic north pole of the earth crossed the Prime Meridian. It was earlier in Canadian Arctic region. It has now moved towards Siberia.

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The Murray River is the longest river in Australia. It is approximately 2,508 km long. It rises in the Australian Alps and flows through New South Wales and Victoria and empties into the Indian Ocean.

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Drainage basin is an area of land where the rain water collects and drains off in a common outlet like river or bay. Amazon is the largest river basin.