Here are the answers to the questions: 3.a (i) State two differences between organic and inorganic fertilizer. • Organic fertilizers are derived from natural sources like plants and animals, while inorganic fertilizers are manufactured synthetically. • Organic fertilizers release nutrients slowly and improve soil structure, whereas inorganic fertilizers release nutrients quickly but can degrade soil health over time. 3.a (ii) Give four examples of organic fertilizer. • Compost • Manure • Bone meal • Blood meal 3.a (iii) State two examples of inorganic fertilizer. • Urea • NPK fertilizer 3.a (iv) State five methods of applications of fertilizer. • Broadcasting • Side dressing • Foliar application • Fertigation • Banding/Placement 3.a (v) Explain why a tomato plant is likely to wilt if too much fertilizer is applied to it. Applying too much fertilizer creates a high concentration of salts in the soil, which lowers the water potential outside the plant roots. Due to osmosis, water moves out of the plant roots into the soil, causing the plant cells to lose turgor and the plant to wilt. 3.b (i) State three examples of major nutrients. • Nitrogen (N) • Phosphorus (P) • Potassium (K) 4.a (i) What are domestic animals? Domestic animals are animals that have been tamed and kept by humans for various purposes such as food, labor, companionship, or for their products. 4.a (ii) State five benefits of keeping domestic animals. • Source of food (meat, milk, eggs) • Provide labor (plowing, transport) • Source of raw materials (wool, leather) • Companionship and security • Income generation through sales 4.b (i) What are decomposers? Decomposers are organisms that break down dead organic matter, such as dead plants and animals, returning essential nutrients back into the soil and ecosystem. 4.b (ii) Give three examples of decomposers. • Bacteria • Fungi • Earthworms 4.c Explain each of the following habitats: (i) Terrestrial: These are habitats found on land, including environments like forests, grasslands, deserts, and mountains. (ii) Aquatic: These are habitats found in water, encompassing environments such as oceans, rivers, lakes, ponds, and wetlands. (iii) Arboreal: These are habitats primarily found in trees, where animals live, feed, and reproduce among the branches and canopy. 4.d Differentiate between an omnivore and a carnivore. A carnivore is an animal that obtains energy and nutrients by eating only other animals (meat). An omnivore is an animal that obtains energy and nutrients by consuming both plants and animals. 5.a (i) Differentiate between mixed farming and mixed cropping. Mixed farming involves the cultivation of crops along with the rearing of livestock on the same farm. Mixed cropping, on the other hand, is the practice of growing two or more different types of crops simultaneously on the same piece of land. 5.a (ii) What is fallow period? A fallow period is a duration during which arable land is left unseeded for one or more growing seasons to allow the soil to recover its fertility, moisture, and organic matter content. 5.a (iii) Give the functions for the following electronic components: (A) Resistor: A resistor's primary function is to oppose the flow of electric current, converting electrical energy into heat. (B) Capacitor: A capacitor stores electrical energy in an electric field and can block direct current (DC) while allowing alternating current (AC) to pass. (C) Inductor: An inductor stores energy in a magnetic field when current flows through it and opposes changes in the current. 5.b (i) State the law of conservation of energy. The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another. 5.b (ii) State three symptoms of COVID-19. • Fever • Cough • Fatigue 5.b (iii) Give four examples of deficiency diseases of humans. • Scurvy (Vitamin C deficiency) • Rickets (Vitamin D deficiency) • Anemia (Iron deficiency) • Goiter (Iodine deficiency) 5.c List four science and technology careers that Ghana must focus on. • Software Engineering • Agricultural Science • Renewable Energy Specialist • Biomedical Engineering Send me the next one 📸