NEET BIOLOGY

Detailed explanation-1: -The waste plants that grow along with the crop in the field are called weeds. These are removed by ploughing the land before sowing the seeds.

Detailed explanation-2: -The unwanted plants which grow in field along with the crop plants are termed as weed. They are harmful for the crops as they compete for nutrients with them.

Detailed explanation-3: -Any plant that is growing unwantedly is known as weed. For example, the grass in the lawn is very lovely but the grass in the garden bed is a weed. Sometimes seeds from wanted plants will spread and the seedlings will appear elsewhere in the garden and become weeds.

Detailed explanation-4: -The weeds are considered unwanted because of the competition that they provide to the economically beneficial crops or plants. These weeds compete with the plants by interfering with their food requirements.