Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land?
Important Questions on World Geography
A State in India has the following characteristics:
1. Its northern part is arid and semi-arid.
2. Its central part produces cotton.
3. The cultivation of cash crops is predominant over food crops.
Which one of the following states has all of the above characteristics?
1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
3. Comets show a perceptible glowing tail, while asteroids do not.
Which of the statements given above is/are correct?
With reference to micro-irrigation, which of the following statements is/are correct?
1. Fertilizer/nutrient loss can be reduced.
2. It is the only means of irrigation in dry land farming.
3. In some areas of farming, receding of groundwater table can be checked.
Select the correct answer using the codes given below:
1. It is located in the sub-tropical high-pressure cells.
2. It is under the influence of warm ocean currents.
Which of the statements given above is/are correct?
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
1. The presence of ozone causes the reflection of radio waves to Earth.
2. Radio waves have a very long wavelength.
Which of the statements given above is/are correct?
