Please answer the following science questions: 11. Why should the emergency exit in a science laboratory be clearly marked? 12. What is a solvent? 13. Which method of separating homogeneous mixtures i

Here are the answers to the questions:

11. Why should the emergency exit in a science laboratory be clearly marked?
C) To provide a quick escape in case of emergency.
Emergency exits are clearly marked to ensure that occupants can quickly and safely evacuate the building during an emergency, such as a fire or chemical spill.

12. Grade 8 learners were learning about evaporation and came across the term solvent. What is a solvent?
A) A substance that dissolves another substance.
A solvent is a substance, typically a liquid, that has the ability to dissolve other substances (solutes) to form a solution.

13. Grade 8 learners observed the diagram below while discussing methods of separating homogeneous mixtures. Which method is shown?
The diagram illustrates a distillation apparatus, which is used to separate components of a liquid mixture based on differences in their boiling points.
The method shown is Distillation.