Many different types of devices, such as flashlights, cell phones, hearing aids, and watches, are powered by batteries. These batteries are sources of chemical energy. Which statement best explains why batteries are used to power these devices? A.
batteries enable devices to use chemical energy directly
B.
batteries convert chemical energy into electrical energy
C.
batteries amplify the chemical energy they provide
D.
batteries reduce the energy demand of powered devices

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.

Using a caesar cypher with an offset of three characters (a -> d, b -> e, z -> c), what would be the correct cypher text for the plain text "attack at dawn"?