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In the coastal lowland of Kerala two crops of rice is grown per year because of:<br>1. high temperature in winter<br>2. adequate rain throughout the year<br>3. adequate irrigation facility<br>4. presence of water retentive clayey loam soil

Correct Answer: 1 and 2
In the coastal lowland of Kerala two crops of rice is grown per year because of high temperature in winter and adequate rain throughout the year.

If one plots the tank irrigation in India and superimposes it with map of well irrigation,one may find that the two are negatively related. Which of the following statements explain the phenomenon?1. Tank irrigation predates well irrigation.2. Tank irrigation is in the areas with impervioussurface layers.3. Well irrigation requires sufficientground water reserves.4. Other forms of irrigation are not available.Select the correct answer using the code given below.

Consider the following statements.
1. Rice and tobacco are the major crops of Andhra Pradesh.
2. Rice and tea are the major crops of Paschim Banga.
3. Rice and jowar are the major crops of Odisha.
4. Rice and Coffee are the major crops of Tamil Nadu.
Which of these are correct?

The transplantation of rice takes 18 days and the total depth of water required by the crop is 60 cm on the field. During this transplantation period, rain starts falling and about 10 cm of rain is being utilized to fulfill the rice demand. Find the duty of irrigation water required for rice assuming 25% losses of water in watercourses.

Every month a man consumes 25 kg rice and 9 kg wheat. The price of rice is 20% of the price of wheat and thus he spends total Rs. 350 on the rice and wheat per month. If the price of wheat is increased by 20% then what is the percentage reduction of rice consumption for the same expenditure of Rs. 350? Given that the price of rice and consumption of wheat is constant :

Where adequate irrigation water is available four to six irrigation are applied to the wheat crop. At which of the following stages of growth is the first irrigation recommended?

Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statement : In spite of less than normal rainfall in the catchment areas during the first two months of monsoon of the lakes supplying water to the city the authority has not yet affected any cut in the water supply to the city.

Assumptions :
I. The rainfall during the remaining part of the monsoon may be adequate for normal water supply.
II. The present water level of the lakes supplying water to the city may be adequate for normal supply.

Consider the following statements and choose the correct answer:
1. Average density of soil is 2.65 gms. per ml.
2. The spaces present between soil particles in a given volume of soil are called pore spaces
3. Porosity of the soil decreases with the increase in the percentage of organic matter in the soil
4. Macro-pore spaces have little water holding capacity and allow free movement of moisture and air in the soil under normal condition

Manish purchased 25 kg of rice @ Rs. 32 per kg and 15 kg of rice @ Rs. 36 per kg. He mixed the two varieties of rice and sold it @ Rs. 40.20 per kg. What is the percent profit earned ?

The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash iscalled?

The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called?