List four air pollutants. A coconut of mass 5000 g hangs 15 m above the ground: Name the type of energy possessed by the coconut and calculate its value. Give one example of plants that undergo epigea

Here are the answers to the questions from the image: 7. a) (ii) List four air pollutants: (i) Carbon monoxide* (ii) Sulfur dioxide* (iii) Nitrogen oxides* (iv) Particulate matter* b) A coconut of mass 5000 g hangs 15 m above the ground: (i) Name the type of energy possessed by the coconut: Gravitational potential energy* (ii) Calculate the value of the energy named in (2bi). g = 10 m/s². Step 1: Convert the mass from grams to kilograms. m = 5000 g = (5000)/(1000) kg = 5 kg Step 2: Use the formula for gravitational potential energy, PE = mgh. PE = (5 kg) × (10 m/s^2) × (15 m) Step 3: Calculate the potential energy. PE = 750 J The value of the energy is 750 J. c) Give one example of plants that undergo each of the following types of germination: (i) Epigeal germination: Bean* (ii) Hypogeal germination: Maize* a) State two functions of each of the following plant structures: (i) Root: Anchors the plant firmly in the soil.* Absorbs water and mineral salts from the soil.* (ii) Stem: Supports leaves, flowers, and fruits.* Transports water and nutrients from the roots to other parts of the plant.* 3 done, 2 left today. You're making progress.