Option “4” is correct. The Coriolis effect influences the paths of moving objects on Earth and is caused by Earth s rotation. Earth surface rotates at different velocities at different latitudes, objects in motion tend to move right in the Northern Hemisphere and to the left in the Southern Hemisphere. The Coriolis effect is nonexistent at the equator but increases with latitude, reaching a maximum at the poles.
342. The sea bed sloping gradually and bordering the continent is known as:
Option “2” is correct. The term “continental shelf” is used by geologists generally to mean that part of the continental margin which is between the shoreline and the shelf break or, where there is no noticeable slope, between the shoreline and the point where the depth of the superjacent water is approximately between 100 and 200 metres.
Option “1” is correct. The epicenter is the point on the Earth’s surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion originates.
Option “4” is correct. Pacific Ocean ranks number one when it comes to the deepest oceans in the world. It has an average depth of 3,939 meters with the World ocean division area of 169.2 million square kilometers. The Mariana Trench is the deepest area of the Pacific Ocean which is about 10,911 meters deep in the Blue Sea.
345. Which of the following is an organic rock?
1. Marble
2. Coal
3. Granite
4. Slate
Option “2” is correct. Organic sedimentary rocks form from the action of organisms. Examples include fossiliferous limestone and coal. Fossiliferous limestone and coal are two examples of organically-formed sedimentary rocks.
346. In geography ‘Gulf Stream’ refers to-
1. A warm ocean current
2. Strong air current
3. Streams joining a gulf
4. The name of a stream
Option “1” is correct. The Gulf Stream is a warm and swift Atlantic Ocean current that originates in the Gulf of Mexico and stretches to the tip of Florida, and follows the eastern coastlines of the United States and Newfoundland before crossing the Atlantic Ocean.
347. Kharif crops are sown-
1. A the beginning of the South-West monsoon
2. At the end of the South West monsoon
3. At the beginning of the North-East monsoon
4. At the end of North-East monsoon
Option “1” is correct. The kharif cropping season is from July –October during beginning of the south-west monsoon.
348. Marble is the metamorphosed form of-
1. Shale
2. Basalt
3. Sandstone
4. Limestone
Option “4” is correct. Marble is metamorphosed limestone, composed of fairly pure calcite (a crystalline form of calcium carbonate, CaCO3). It is extensively used for sculpture, as an building material, and in many other applications.
349. The largest producer of coconut in the world is-
1. Brazil
2. India
3. Indonesia
4. Philippines
Option “3” is correct. Indonesia is largest producer of coconut in the world.
350. The light from the Sun reaches the Earth in about-
