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Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Weeds should not be allowed to grow along with the crops. Reason (R) : Weeds leave no space for plants to grow.

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Weeds should not be allowed to grow along with the crops. Reason (R) : Weeds leave no space for plants to grow. Correct Answer A is true but R is false.

Weeds should not be allowed to grow along with the crops because they consume the plant nutrients. 

Related Questions

An assertion and a reason are given below. Assertion: The phenomenon of nuclear fission generates great energy. Reason: The process in which a nucleus is broken into two parts is called nuclear fission. Choose the answer. A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C. Both Assertion and Reason are false. D. Assertion is true but Reason is false.
There are six persons namely A, B, C, D, E and F. They all take leave from office on any one day of the week starting from Monday to Saturday. Only one person takes leave on one day. C is the first person to take a leave. Three persons take leave between D and C. F takes leave just after D. E takes leave on Wednesday. B takes a leave after A. Who takes a leave on Thursday?
Which of the following statements are true/false?
1. Every worker who has worked fora period of 240 days or more in a factory during a calendar year shall be allowed during the subsequent calendar year, leave with wages.
2. A worker who has been allowed leave for not less than four days, in the case of an adult, and five days, in the case of a child shall, before his leave begins, be paid the wages due for the period of the leave allowed.
3. If a worker works in a factory works for more than nine hours in any day or for more than 40 hours in any week, he shall, in respect of overtime work, be entitled to wagesat the rate oftwicehis ordinary rate of wages.4. The periods of work of an adult worker in a factory shall be so arranged that inclusive of his intervals for rest, they shall not spread over more than eleven and a half hours in any day.
Given below are two statements : Statement I: Aquatic weeds are fast-growing weeds that can attain very high productivities when cultivated on nutrient-rich wastewater such as domestic sewage. Statement II: Water hyacinth, Salvinia and duckweed are some examples of aquatic weeds. In the light of the above statements, choose the correct answer from the options given below:
Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : a Leaves of plants are green. Reason (R) : Plants contain chromoplasts, the green pigment.
Consider the following statements about the practices followed under “Jhoom farming”: A. After obtaining one set of crops the land is left as it is for some years. B. The bamboo or weeds which grow on the land are pulled out and burnt. C. The ash obtained on burning the weeds etc. is used as fertilizer. D. When the land is ready for farming it is deeply ploughed before dropping the seeds. The correct statements(s) is/are
P, Q, R, Sand T are five crops that Babu grows. T is fast growing and more water demanding than R which gives more yield than T. P gives more yield than R and grows faster than Q. Q is more water demanding than T but is second lowest yielder, S is the slowest growing and least water demanding of all crops but gives highest yield. R is more water demanding and grows faster than P. Select the crop or crops that has/ have as many as crops that are more water demanding and as many as crops that give less yield than it. 
Weeds are the unwanted plants that grow along with the cultivated plants. How do they affect the crop plants?
For successful inter-cropping, which of these conditions are required to be ideally fulfilled? I. Competition for light should be minimum among the different crops sown. II. Complementarity must exist between crops sown. III. The time of peak nutrient demand of component crops should not overlap. IV. The difference in maturity of component crops should be at least 120 days.
An Assertion (A) and a Reason (R) are given below. Assertion (A): Pesticides must be used in more quantity on crops. Reason (R): Pesticides helps to protect the crops from insects and crop diseases. Choose the correct option.