Common signs and symptoms of PCOS include the following: 1  Menstrual disorders: PCOS mostly produces oligomenorrhea (fewer than nine menstrual periods in a year) or amenorrhea (no menstrual periods for three or more consecutive months), but other types of menstrual disorders may also occur.
Environmental law is a law that was passed in the 1970, and is known as the National Environmental Policy Act. This law was passed along with another environmental act known as the Environmental Quality Improvement Act.The purpose of these laws was to protect the environment from public or private actions that could cause damage.nvironmental law is a combination of three things: the first is the statute that is passed through Congress.
legislation. clean air acts of 1955, 1963, 1970, 1990. In 1955, after many state and local governments had passed legislation dealing with air pollution, the federal government decided that this problem needed to be dealt with on a national level.his was the year Congress passed the Air Pollution Control Act of 1955, the nation's first piece of federal legislation on this issue. The language of the bill identified air pollution as a national problem and announced that research and additional steps to improve the situation needed to be taken.