Q: Q: What kind of fibers are used to transport telephone and television signals? Read this paragraph and choose the correct option from the provided answers: Total internal reflection allows the light to travel down the optical fiber and not pass through the sides of the tube. The light continuously reflects from the inside of the tube and eventually comes out the end. Optical fibers make interesting lamps but they are also used to transport telephone and television signals. Choices: - touch fibers - process fibers - hair fibers - optical fibers A:
A: optical fibers

Q: Q: Glass, rubber, and plastics are examples of which type of solids? Read this paragraph and choose the correct option from the provided answers: Examples of amorphous solids include glass, rubber, and plastics. Choices: - dubious - aqueous - porous - amorphous A:
A: amorphous

Q: Q: What collects fluid from a system of canals in the cytoplasm? Read this paragraph and choose the correct option from the provided answers: Choices: - placenta - mitochondria - chlorophyll - vacuole A:
A: vacuole

Q: Q: What is the ability to change or move matter? Read this paragraph and choose the correct option from the provided answers: Energy is the ability to change or move matter. All living things need energy. They need energy for everything they do, whether it is to move long distances or simply to carry out basic biochemical processes inside cells. Energy enters most ecosystems in the form of sunlight. In a few ecosystems, energy enters in the form of chemical compounds. All ecosystems need a constant input of energy in one of these two forms. Choices: - volume - temperature - density - energy A:
A: energy