The exosphere layer is mainly composed of extremely low densities of hydrogen, helium, and several heavier molecules including nitrogen, oxygen, and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding into one another.
Thus, the exosphere no longer behaves like a gas, and the particles constantly escape into space!!!!
<h3><u>Answer:</u> </h3>
There are regular five types of clouds named as Cumulus, Stratus, Nimbus, Cumulonimbus and Cirrus.
<h3><u>Characteristics</u></h3>
- The type of clouds are recognized based on the shape and height in the sky. There are low level clods, mid-level clouds and high-level clouds.
- Cumulus are puffy clouds(below 6000 feet) that are scattered in the sky.
- Stratus are near the ground ( above 6000 feet and below 20000 feet) that forms fog.
- Cirrus (above 18000 feet) are thin wispy clouds.
- Nimbus and cumulonimbus clouds are seen during rain or thunderstorm usually up to 50000 feet.
Aisbergurile= blocuri mari de gheata
Ele reprezinta un pericol pentru navigatie (vapoare,barci...) sau pentru oameni.