Which of the following pairs of Isolines and its properties are correctly matched ? 1. Isonif : Snowfall 2. Isohel : Sunshine 3. Isohaline : Salinity 4. Isohypse : Cloudiness Select the correct answer using the code given below :
- A.1, 2 and 3
- B.2, 3 and 4
- C.1 and 3 only
- D.1, 2 and 4
Correct answer
Explanation
The correct answer is A, 1, 2 and 3. Isonif, isohel and isohaline are matched correctly; an isohypse joins places of equal height, not equal cloudiness.
An isoline joins points on a map that have the same value of something. An isonif joins places with equal snowfall, an isohel places with equal hours of sunshine, and an isohaline points of the sea with equal salinity. An isohypse is a contour line joining places of equal elevation. Lines of equal cloudiness are called isonephs. Other common ones are isobars for pressure, isotherms for temperature and isohyets for rainfall.
B is wrong because it includes pair 4, and an isohypse shows height, not cloudiness, while it leaves out the correct pair 1. C is wrong because it leaves out pair 2, isohel and sunshine, which is correct. D is wrong because it includes the wrong pair 4 and leaves out the correct pair 3.
Exam tip: Isonif snow, isohel sunshine, isohaline salinity, isohypse height (contour), isoneph cloud, isohyet rain, isobar pressure.
Practice Questions
View allBagram Air Base is located in
- A.Turkey
- B.Pakistan
- C.Afghanistan
- D.Israel
Show answer
Bagram Air Base lies in Parwan province of Afghanistan, about 60 km north of the capital Kabul.
Read the full explanation →Which one of the following statements is not correct?
- A.Position of the Sun, Earth and Moon in a straight line of 180° angle is known as syzygy.
- B.Syzygy conjunction causes solar eclipse.
- C.Syzygy opposition causes lunar eclipse.
- D.Syzygy conjunction occurs at the time of perihelion only.
Show answer
This statement is not correct, because conjunction happens at every new moon, about once a month, and has nothing to do with the Earth's closest point to the Sun.
Read the full explanation →Which one of the following about sugar industry of Peninsular India is not correct?
- A.High yield per hectare of sugarcane
- B.Higher sucrose content
- C.Long crushing season
- D.Most of the mills in the Peninsula are located mainly along the east coast
Show answer
This statement is not correct, because the peninsular sugar mills are concentrated mainly in Maharashtra and Karnataka, in the west and the interior of the plateau.
Read the full explanation →Which of the following statements is/are correct?
1. Visakhapatnam Port is a land-locked harbour.
2. Deendayal Port is a tidal port.
Select the correct answer using the code given below.
- A.1 only
- B.2 only
- C.Both 1 and 2
- D.Neither 1 nor 2
Show answer
Both statements describe the two ports correctly. Visakhapatnam in Andhra Pradesh is India's deepest land-locked and protected port on the east coast.
Read the full explanation →Weathering, mass wasting, erosion and transportation are indicators of which one of the following processes?
- A.Denudation
- B.Endogenetic process
- C.Diastrophism
- D.Mountain building
Show answer
Weathering, mass wasting, erosion and transportation together wear down and strip away the earth's surface, and this combined work is called denudation.
Read the full explanation →