Answer:
I think they use it at night because they want to avoid involving themselves in road accident while crossing the street. When there are reflective strips on their clothes, drivers do notice them even at far ends of the street since the strips will reflect the rays from the car lights to the driver,hence, the driver notifies that there is a pedestrian crossing and therefore slows down.
Answer:
The force needed is the weight of the rock minus the buoyant force.
Explanation:
The elements which have similar behavior are Barium, strontium and beryllium.
Explanation:
Hello. The answer to your question is ''<span>hypothesis''. I hope this helps! </span>
