Both solid and flowing, its composed of plastic rock flowing and the lithosphere is composed of rigid solid rock. I had this.
Answer:
what?!? lolllllllllllllll no
Explanation:
Explanation:
<u>Hydrogen is used as fuel in automotives . It yields very high energy on combustion. It has great energy density by weight but poor energy density by volume. This is because Hydrogen is a very light gas, approx. 11 times lighter than normal air.</u> Hence it would require large volume of container to store it at normal atmospheric pressure conditions. That is why it is compressed using external energy to increase its density and decrease the volume needed for storage . So it becomes portable.
Only problem in this approach is that it utilities about 20% energy of the Hydrogen's energy potential to compress it . But this method proves cost effective as it reduces the overall weight of the container and also gives space to vehicles .
Answer:
C. 140 years
Explanation:
Undergoing decay to decrease by half.
Rapid industrialization and raise in population increases the sources of population and the rate of discharge of wastes. Mass production of products also results in the production of wastes and some industries and countries don't have the technology to treat these wastes before discharging them into the environment.
