Answer:
B.
Explanation:
Because a Longitudinal wave is a wave vibrating in the direction of propagation.
Genetically modified foods are foods that have been engineered (changed/altered) to produce from the original food to have a change in DNA using genetic engineering. For example cotton candy grapes, there isn’t such thing as a real cotton candy grape, the flavor of the grape been modified to taste like cotton candy.
Answer:
sun gives plant energy which gives animal and humans food
Explanation: