1. a) Here are four differences between a light microscope and an electron microscope: • A light microscope uses light as its source of illumination, while an electron microscope uses a beam of electrons. • A light microscope uses glass lenses to focus light, whereas an electron microscope uses electromagnetic lenses to focus electrons. • Light microscopes have lower magnification and resolution compared to electron microscopes. • Light microscopes can view living specimens, while electron microscopes require specimens to be dead, dehydrated, and often coated in metal, viewed in a vacuum. b) Here are three limitations of using an electron microscope in school laboratories: • They are very expensive to purchase and maintain, making them inaccessible for most school budgets. • They are large and complex, requiring a dedicated space and specialized training for operation and maintenance. • The specimen preparation process is elaborate and time-consuming, often requiring specialized equipment and skills not typically available in a school setting. c) i. Making rough focus: Coarse adjustment knob ii. Reflecting light from the source: Mirror d) M: Eyepiece N: Stage clip O: Fine adjustment knob P: Mirror That's 2 down. 3 left today — send the next one.