According to the bar graph when did scientist begin taking measurements of the dead zone

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

Me guys ! software enables between different types of software and between software and hardware. a. communication b. input c. output d. distribution

Which of the following is not a feature of the surface mining control and reclamation act? regulation of surface coal mines repayment of loss of benefits to ill mine workers restoration of lands to pre-mining conditions retroactivity return of land to original topography