Scientists on the side of earth opposite the epicenter of an earthquake detect mainly a. p waves. b. s waves. c. transverse waves. d. surface waves

a. P waves.

Explanation:

P. Waves are the fastest waves that a sismic activity releases, P. waves can travel through solids and liquids, this includes the inner layers of the planet, that is why if there is a lab on the opposite side of the epicentr of an earthquake it would detect mainly just P waves, since they are the only ones that can travel through the core of the earth.

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.