Coal workers' pneumoconiosis (CWP), commonly known as "black lung disease," occurs when coal dust is inhaled. Over time, continued exposure to the coal dust causes scarring in the lungs, impairing your ability to breathe.
Answer:
Oceans = > 97 percent of Earth's water.
Glaciers = > 70% of Earth's freshwater
River = > Powered by gravity
Groundwater = > 100 times more water than all rivers and lakes
97% of the water on Earth is not drinkable as it is salt-water in oceans.
Of the 3% that is freshwater, Glaciers make up about 70% which means that we don't have access to a significant amount of freshwater either.
Of the available freshwater to us, groundwater comprises 98% which enables it to be 100 times more than all rivers and lakes.
Rivers are powered by gravity in that they flow from areas of higher elevation to areas of lower elevation as gravity pulls it downwards.
1:Plates move away from one another at divergent boundaries. This happens at mid-ocean ridges<span>. Plates move towards one another at convergent boundaries; one plate is forced below another in a process called subduction.
2:</span><span>In areas where the </span>plates<span> come together, sometimes volcanoes </span>will<span> form. Volcanoes</span>can<span> also form in the middle of a </span>plate<span>, where magma rises upward until it erupts on the seafloor, at what is called a “hot spot.” The Hawaiian </span>Islands<span> were </span>formed<span> by such a hot spot occurring in the middle of the Pacific </span>Plate<span>.
I hope this helps!</span>
Increased productivity is the main contributor to economic growth in U.S. agriculture.
