Ploughing is now done by tractor-driven cultivators, saving labor and time. The use of cultivators in modern agriculture has replaced traditional ploughs in many instances. NCERT Class 8 Science Chapter 1 Crop Production and Management
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If the interpretations are correct, both parents contribute equally to the DNA of the progeny during sexual reproduction.
A hoe is a tool used for removing weeds and loosening the soil. It has a long rod of wood or iron with a strong, broad, and bent plate of iron fixed at one end. NCERT Class 8 Science Chapter 1 ...
The indigenous wooden plough is increasingly being replaced by iron ploughs in modern agriculture for more efficiency and effectiveness in soil preparation. NCERT Class 8 Science Chapter 1 Crop Production and Management
Genes code for enzymes, and the efficiency of these enzymes influences the production of plant hormones. The amount of hormones produced, determined by the efficiency of the enzyme coded by a gene, directly affects plant height. This illustrates how genes ...