A Geiger-Muller (GM) tube can be used to detect ionising radiation. How many alpha particles entering the GM tube are needed to make the counter advance by one? Give your answer in numbers, not words.

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Both independent and dependent clauses

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.