WHat word becomes shorter when you add letters to it??

Do you want brainliest + free points? answer this question correctly. why is it important to make sure a police report is properly filed after a collision? a. it's the official account of what happened. b. if you have the police file a report, you can't be fined. c. if you have the police file a report, your insurance won't go up. d. if there's no report, an auto repair shop won't fix your vehicle.

In your own words define the following terms. 1 hibernation. 2 hormone. 3 behavior. 4 stimulus

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.