Folded layers of rock can form a wavelike pattern of troughs and crests. the layers near the crest (i. e. the upward fold) form a) a syncline. b) a tension zone. c) an anticline. d) a thrust fault.

Atoy airplane, flying in a horizontal, circularpath, completes 10. complete circles in 30.seconds. if the radius of the plane’s circular pathis 4.0 meters, the average speed of the airplane is(1) 0.13 m/s (3) 1.3 m/s(2) 0.84 m/s (4) 8.4 m/s