Select True or False in the following statements regarding photosynthesis and respiration.
1. Photosynthesis occurs only in the presence of chlorophyll. 2. Photosynthesis occurs at all time. 3. Respiration uses carbon dioxide and water. 4. In respiration carbon dioxide is released as end product.
Distinguish between exothermic and endothermic reaction. Amongst the following reactions, identify the exothermic and endothermic reaction: (i) Heating coal in the presence of air to form carbon dioxide. (ii) Heating limestone in lime kiln to form quick lime.
What is exothermic and an endothermic reaction? Amongst the following reactions, identify the exothermic reaction and the endothermic reaction: 1. Heating coal in air to form carbon dioxide. 2. Heating limestone in lime kiln to form quick lime. [3 MARKS]