Which ocean zone has the greatest water pressure?

98 points! include an answer and in advance!

Typically, passing a dual enrollment course in english would earn a student: a. weighted credit on college transcripts. b. both high school and college english credit. c. high school social studies credit. d. credit for two high school english classes

Which of these is a disadvantage of hydrogen fuel cells? a. engines that use hydrogen fuel are more efficient than gasoline-powered engines. b. the only emission produced by hydrogen fuel cells is water. c. hydrogen fuel is continually available and useful for heating. d. hydrogen fuel is often purified in a process that emits lots of greenhouse gases.