Answer:
(B) do that the model can be taken apart
Explanation:
Answer: Old shells, or pieces of old shells, pressed together because limestone is made from bones that are parts of the skeleton that got squished together.
Explanation:
honestly i dunno what to do with this...
Answer:
Dominique
Explanation:
A watershed describes an area of land that contains a common set of streams and rivers that all drain into a single larger body of water, such as a larger river, a lake or an ocean. For example, the Mississippi River watershed is an enormous watershed. Small watersheds are usually part of larger watersheds.
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:
At the start of the 20th century, temperatures were about 4.5°F cooler. The temperatures of the arctic are confronting the heatwave, very unusual for Arctic standards.
Explanation:
These changes in temperatures can be “grateful” to climate change. The climate changes will continue with raising the temperature in the Arctic. These climate changes are so usual at this moment on the Earth, that in a few decades people will be used to heat.
