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Fishing grounds are concentrated in the high latitudes. The reasons are:<br>1. great length of indented coastline<br>2. extensive continental shelves<br>3. water temperatures lower than 20°C<br>4. sparse population

Correct Answer: 1, 2 and 3
Fishing grounds are concentrated in the high latitudes. The reasons are there great length of indented coastline, extensive continental shelves and water temperatures lower than 20°C.

Which of the following are reasons for the chief fishing grounds being located in continental shelf areas where cold and warm currents meet?
I. Warm currents are rich in phosphates and nitrates
II. Plankton - the chief fish feed - thrives in these regions
III. The meeting of cold and warm currents allows the water to be well aerated
IV. The epicontinental seas allow sunlight to reach almost to the bottom

The various types of plate convergence is
  1. I. oceanic-oceanic convergence
  2. II. oceanic-continental convergence
  3. III. continental-continental convergence

Consider the following statements :
1. Where fold mountains run parallel and close to the coast, continental shelf is narrow or absent
2. The average depth of continental shelf is 100 meters
3. Submarine canyons are mostly found in continental slope
4. The submarine flat topped mountains are called guyots.

The value of total latitudes and its adjoining departures were given. Calculate area by departure and total latitudes method. Total Latitudes = 110, 25,0, 0 and adjoining departures = 245, 245, -245, -245.

Which of the following pairs of Indian State and tribal population are correct? A. Madhya Pradesh : Largest tribal population B. Mizoram : Highest percentage of tribal population out of the total population of the State C. Chhattisgarh : Second largest tribal population after Madhya Pradesh D. Arunachal Pradesh : Second highest percentage of tribal population out of the total population of the State after Mizoram Select the correct answer using the code given below.

The fishing grounds in the Pacific Ocean, the world's greatest fishing regions, lie between the ________

The shallow waters of continental shelves are rich fishing grounds. An example of such area is

The world's major fishing grounds are located along the eastern shores of continents between 40º N and 50º N latitudes where cool and warm currents converge. An example or such area is

Which of the following best explain why the lower course of a river is sometimes choked with sediments?
1. The valley of a river is widest in its lower course.
2. The velocity of a river in its lower course is low.
3. The delta sometimes develops in a river's lower course.
4. Much of the river water is drawn for irrigation in the lower course.

A certain city with population of 132,000 is to be divided into 11 voting districts and no district is to have population that is more than 10 percent greater than the population of any other district. What is the minimum possible population that the least population district could have?