Answer:
because they can donate blood to anyone
Explanation:
Answer:
If there are no plants in the tank, they will run out of oxygen because there is nothing producing oxygen.
Explanation:
Answer:
Nature
Explanation:
Because erosion happens in the nature.
The process is called condensation. the initial state- water vapor- is in a gas form. turning into droplets changes it into a liquid state.
Sound waves are both compressional and longitudinal, (although we frequently draw them as transverse waves).
Longitudinal waves are where the particles of matter collide into one another, pushing them into the next and then oscillating back. This is how sound travels. This is also why sound can only travel through a medium, it cannot travel through a vacuum, as is shown here:
