In what physical form are blister agents normally disseminated?
Natural agents of physical weathering: Rain, sand (driven by the wind), sunlight, the freeze/thaw cycle. Man-made agents of physical weathering: Acid rain.
yes you will need a physical
The physical agents in the mining and quarrying industry include the guidelines to the health, safety and welfare at work.
These substances are pharmacodynamic agents.
Temperature Change Pressure Change Animal Action Wind, Water, and Gravity Plant Growth
Weathering
The agents of weathering include water, wind, sun, ice, frost, and plants and animals. All these different agents work on rocks and make changes to them over years.
A description of what sports agents do can be found on the Wikipedia website. You could also find a description in any online or physical encyclopedia.
Pathogens.
this is one of my science problems so please help me on this
The physical weathering agents are basically the water and wind. But the rocks decay mostly because of wind. Wind blows continuously for ages and the rocks that stand in the way get decayed in the long run.