The point beneath earth's surface where rock breaks under stress and triggers an earthquake is called? a. syncline b. footwall c. epicenter d. focus

Look at the figure above. which atmospheric layer has around 80 percent of the mass of the earth's atmosphere? (hint: it's where the clouds seen on earth are formed.) a. exosphere b. troposphere c. stratosphere d. thermosphere

Explain why biological control methods are generally environmentally superior to chemical pest control methods.

Every early childhood education program should develop a