We are eternally grateful that Luke Howard came up with such an easy and straightforward way of naming clouds.

We see everything from sand dunes covered with frost, water ice clouds hanging over volcanoes and ancient craters being eroded by high winds.

Reports of a hurricane are unfounded. (Said before the biggest hurricane to hit Britain for decades)

I am sure that if you plant the trees back again, it will do nothing but good.

It's uncomfortable for people to pursue their normal routines. It's an inconvenience. Rain brings a lot of dark clouds and much less light, even at this time of the year.

The process of star formation is obscured because it takes place in these dense molecular clouds, so it's not yet directly observable. Astrophysicists believe that magnetic fields play a strong role in regulating the star formation by affecting the shape of these molecular clouds.