The particles of the cold cup are are vibrating slow. The particles in the hot cup are vibrating fast.
Answer:
d
Explanation:
because when you plough your field for crops to grow rain falls for the crops to yeild well
Explanation:
Your heart muscle cells –
A relatively small blood pressure gradient is generally insufficient to move blood through the veins under given conditions, thus venous return must be facilitated by valves within veins and two "pumps." ... As skeletal muscles contract, veins are squeezed to help propel the blood toward the heart.
