You are presented with the question "What is used to refract light?" and the following answer choices: - glass - stone - a wave - fibers - tube - copper - rocks - sand Now knowing that aprism is used for refracting light and glass prisms are heavy, choose the best answer.
glass

You are presented with the question "Yoga does what?" and the following answer choices: - decreases flexibility - recovery time from fatigue - faster movement - increases a body's strength - absorb light energy - Something that is self-aware - reduces a body's strength - causes stress Now knowing that exercise increases a body 's strength and yoga is a gentle form of exercise, choose the best answer.
increases a body's strength

You are presented with the question "What happens to your leg when muscle fibers shorten?" and the following answer choices: - they bend - It decreases - It straightens - permineralization - It expands - Damages them - Localized damage - Dehydration Now knowing that muscle contraction occurs when muscle fibers get shorter and contraction of the muscle straightens the leg, choose the best answer.
It straightens