The climate or the weather causes weathering. If you mean seeds, then ice, rain, snow, foot traffic, and stomach acid of animals weather the seeds. In turn, it makes sprouting easier. If you mean erosion in general, then ice, rain, melting snow, wind, human or animal traffic, avalanches, and underground aquifers could all be contributing factors.
Plant roots cause Biological weathering which is indeed Mechanical in its nature. Animals burrowing is also a cause of Biological weathering.
It doesn't. If it is IN a living thing it is not available to cause weathering elsewhere!
Weathering of any kind can sometimes cause problems, like erosion of topsoil. Biological weathering, where the weathering is caused by living things (plants and animals), can cause the same kinds of problems.
bob
wind and rain
Lichen.
No, they don't. Rocks don't cause weathering at all. They are the things which get weathered.
chemical weathering
Waves
When the weather damages things such as acid rain, it is weathering. Acid Rain is chemical weathering because it is rain with the chemical acid in it and it can damage things like buildings, rocks and other objects. Other types of weathering are Physical Biological
They both have to do with nature and the things that affect/change it such as erosion and weathering.
There are three things that cause weathering in rocks. These factors are wind, plants, and water. Wind and water make the rock dissolve away. Plants can cause the rocks to crack.