These days, the Department of Labor enforces roughly 180 worker protection laws, ranging from pay requirements to parental leave benefits. Other protections are supervised by agencies such as the U.S. Equal Employment Opportunity Commission. Below are some of the key federal protections offered to employees.
About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.
How much water is there? Water covers nearly three-fourths of the Earth's surface and is mostly found in the oceans and seas. That sounds like a lot of water, right? Well, it is, but we can't drink much of it. Since more than 97% of the water on earth is in the form of salt water, only a tiny amount of water is usable as fresh, drinking water. Human beings cannot drink salt water. We need fresh water to survive. So, just exactly how much fresh water is there? Two percent (2%) of the water on Earth is in the form of frozen fresh water, but it is not usable by human beings. Only about 1% of the total water on Earth is in the form of fresh water that is found in lakes, streams, rivers, soil and underground reservoirs or aquifers.