C. Mercury is the answer. Mercury and Venus are the only two planets in our solar system that don't have moons
Answer:
B. The foam has tiny air pockets that slow the transfer of thermal
energy away from the water in the pipe
Explanation:
Air is a poor conductor thermal energy and can be used as good insulator. Insulators are poor conductors of heat.
When it is freezing outside, the temperature gradient will tend to adjust to the ambient one. The water in the pipe being at a higher temperature will tend to lose heat energy to the surrounding.
The layer of foam will prevent this form of heat exchange from happening because of the air pocket that is present around.
I believe that a good way to summarize all the processes is metabolism.
Metabolism is the sum of all the (chemical) processes starting at the beginning of an organisms' life and ending at death.
The heart’s electrical system is responsible for making and conducting signals that trigger the heart to beat. These signals cause the heart’s muscle to contract. With each contraction, blood is pumped throughout the body. This happens 24/7 without us having to monitor it all the time so that our heart does not stop.
