(Q).
You are presented with the question "what does a rubber band snapping cause?" and the following answer choices: - frequency wave - friction - electrically - h2o - death - chemical reaction - elastic - Electrical energy Now knowing that arubber band snapping causes the particles in the rubber band to vibrate and by it's nature, a vibration is a frequency wave , choose the best answer.
(A).
frequency wave

(Q).
You are presented with the question "Behaviors that improve fitness increase through" and the following answer choices: - differential reproduction - produce offspring - biological diversity - metabolic reaction - recovery time from fatigue - characteristics - barks and snarls - members of their own species Now knowing that behaviors that improve fitness increase through natural selection and natural selection is differential reproduction, choose the best answer.
(A).
differential reproduction

(Q).
You are presented with the question "A sandbar is formed by " and the following answer choices: - loose soil - magma eruptions - wind currents - near the shoreline - seismic activity - natural erosion - flooding - Physical weathering Now knowing that asandbar is formed by water moving sediment downstream and some sediment comes from natural erosion, choose the best answer.
(A).
natural erosion