This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
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Here are the answers to the agricultural science questions: Question 16: Step 1: The question asks for a pre-planting operation, which means an activity carried out before crops are planted. Step 2: Thinning, mulching, weeding, and watering are typically done after planting. Step 3: Stumping is the removal of tree stumps from land, which is a crucial part of land preparation before cultivation, making it a pre-planting operation. The correct option is E. E) Stumping Question 17: Step 1: The question asks which crop is harvested after 12-14 weeks (approximately 3-3.5 months) of planting. Step 2: Cassava, cocoa, coffee, and oil palm are all crops that take much longer than 12-14 weeks to mature and be harvested. Step 3: Maize (corn) varieties are typically harvested within 10-14 weeks after planting, depending on the specific variety and growing conditions. The correct option is B. B) Maize Question 18: Step 1: The question asks about the typical fate of harvested tomato fruits in Sierra Leone. Step 2: Tomatoes are perishable and are a staple in local diets. While some may be processed by local industries, the most common and immediate use for fresh tomatoes in many regions is local consumption. Exporting fresh tomatoes is challenging due to their short shelf life. Step 3: Therefore, a significant portion of harvested tomatoes is sold in local markets for fresh consumption. The correct option is A. A) sold locally. Question 19: Step 1: The question asks to identify animals whose milk is usually produced for human consumption. Step 2: Goat milk (I) and Cow milk (IV) are widely consumed by humans globally. Step 3: Sow (pig) milk (II) and Rabbit milk (III) are not typically produced or consumed by humans. The correct combination is I and IV. The correct option is B. B) I and IV Question 20: Step 1: The question asks for an example of a ruminant. Ruminants are mammals that digest their food in two steps, first by eating the raw material and then regurgitating a semi-digested cud to chew it again. They have a four-chambered stomach. Step 2: Cattle (A) are well-known examples of ruminants. Sheep are also ruminants, but cattle is listed as an option. Pigs (B), poultry (C), and rabbits (E) are not ruminants. The correct option is A. A) cattle That's 2 down. 3 left today — send the next one.