Clouds

The Arroyo Seco is a canyon in Pasadena. It was formed by water and maybe, wind erosion.

Nimbus clouds are dark gray cloud bearing rain. So, yes.

Lakes are larger and deeper than streams. Streams have cleaner and cleaner water and higher oxygen content than slow-flowing streams.

cumulus clouds contain good weather or rain

is it true or false

Cirrus clouds are not rain clouds; they are the high wispy clouds that you sometimes see on a clear day.

bumm

what puffy clouds that can be found at middle altitudes

Yes

water

Plants release water vapor.

Cumulonimbus clouds produce rain and sometimes hail.

no you need rain clouds

No. Altocumulus do not cause thunderstorms, but altocumulus castellanus can be a sign that thunderstorms will develop later in the day.