In your opinion, are clouds strong? Why?

no

Explanation:

they are made of water particles that have condensed due to low temperatures by increasing latitude

Cumulonimbus can form alone, in clusters, or along cold front squall lines. These clouds are capable of producing lightning and other dangerous severe weather, such as tornadoes and hailstones. Cumulonimbus progress from overdeveloped cumulus congestus clouds and may further develop as part of a supercell.

Explanation: Most clouds form in rising air. As a volume, or parcel, of air rises, it expands and cools. as the parcel approaches the point of saturation, water vapor condenses to form tiny water droplets or ice particles, creating a cloud

so yes pretty much

weathering is the answer.