Question

Match List-I with List-II :

List-I (Method of weed control)	List-II (Measure of weed control)
(A) Preventive method of weed control	(I) Proper crop rotation
(B) Cultural method of weed control	(II) Control of Lantana camara (Prickly Pear) by Lantana bugs
(C) Chemical weed control	(III) Use of herbicide
(D) Biological weed control	(IV) Use of weed-free seeds

Choose the correct answer from the options given below :

• (A) - (IV), (B) - (I), (C) - (III), (D) - (II)
• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (III), (B) - (II), (C) - (IV), (D) - (I)
• (A) - (IV), (B) - (I), (C) - (II), (D) - (III)

Answer 1

The Correct Option is A

To match List-I (Method of weed control) with List-II (Measure of weed control), we identify the relationship between each method and its corresponding measure: 

• Preventive method of weed control: This involves preventing the introduction and spread of weeds, typically achieved by using weed-free seeds. Thus, (A) matches with (IV).
• Cultural method of weed control: This method includes practices like proper crop rotation, which helps manage weeds by preventing their adaptation and buildup. Hence, (B) matches with (I).
• Chemical weed control: This is the application of herbicides to control weeds. Therefore, (C) matches with (III).
• Biological weed control: This involves using natural predators or pathogens, such as the control of Lantana camara by Lantana bugs. Consequently, (D) matches with (II).

Therefore, the correct matching is: (A) - (IV), (B) - (I), (C) - (III), (D) - (II)

Answer 2

The correct answer is (4) (A) - (III), (B) - (IV), (C) - (I), (D) - (II).

Let’s break it down:

(A) Preventive method of weed control: This involves steps taken to prevent the growth of weeds. An example is using weed-free crop seeds (which helps in avoiding the introduction of weed seeds). Thus, the correct match is (A) - (III).

(B) Mechanical method of weed control: This involves physical methods like weeding, tilling, or mowing to remove or control weeds. An example is hand weeding, where weeds are manually removed. Thus, the correct match is (B) - (IV).

(C) Cultural method of weed control: This includes practices like crop rotation to prevent weeds from becoming established. Proper crop rotation is an example of this method, which prevents specific weeds from thriving in a monoculture system. Thus, the correct match is (C) - (I).

(D) Biological method of weed control: This involves the use of natural predators or organisms to control weeds. An example is the control of Lantana camara by Lantana bug, a biological agent that targets the weed. Thus, the correct match is (D) - (II).

Therefore, the correct match is (4) (A) - (III), (B) - (IV), (C) - (I), (D) - (II).