Which of the following are sources of low-level radiation? A) medical X-rays B) nuclear waste truck passing by C) burning of fossil fuels D) all of the above E) a and c only

What is tge speed of sound in dry air at 0°c

What type of power generation can cause air pollution a.wind b.natural gas c. geothermal d.solar

Match the jobs with the academic requirements a high school diploma and training to become certified a masters or doctoral degree a bachelors degree in business and experience a training program and certification in cardiopulmonary resuscitation( cpr) and first aid. a. firefighter b.college faculty member c.lifeguard d.chamber of commerce officer