They are sinking because of Sedimentation.
Think Green or Save the Earth.
save the forest to see the brighter earth......
DO the earth a favour. Be a power saver!
save the forest to see the brighter earth......
Pollution: STOP IT OR FACE IT
Reduce, Reuse, Recycle:) Save a TREE! Love the Earth like you love a puppy:)
earth is your life .so keep it clean
save the water stop the earth from getting hotter
The earth it's our last one!
use paper bags and save earth
use net to find slogans im also using it so use it and save soil