Which of the following explains why scientists use seismographs? A.)to measure earthquakes
B.)to measure fault lines
C.)to forecast aftershocks
D.)to forecast earthquakes

What is the speed of sound in water

Which outcome is not caused by gravitational forcea. gas and dust come together to form a planet b. planets orbit a star c. two atoms come together to form a molecule d. stars cluster to form a galaxy

The plants growing on scotlands highland moors are a)mixed forestb)grasses and low shrubsc)evergreen treesd)palm trees and ferns