Give one example of chemical compound used in:
(a) medicine
(b) agriculture
(c) industry
2. Define the term soil profile.
(ii) State two ways in which soil is important in crop production
a) One example of a chemical compound used in medicine is aspirin (acetylsalicylic acid).
b) One example of a chemical compound used in agriculture is urea, which is commonly used as a fertilizer.
c) One example of a chemical compound used in industry is polyethylene, which is a plastic commonly used in packaging and manufacturing.
2. Soil profile refers to the vertical arrangement of soil layers, or horizons, from the surface down to the bedrock.
(ii) Soil is important in crop production in two ways: firstly, it provides a medium for plant growth, including essential nutrients, water, and oxygen. Secondly, soil acts as a habitat for soil organisms, such as bacteria and earthworms, which play important roles in nutrient cycling and soil structure.