The diagram shows two energy resources. Which labels best categorize the resources shown in the diagrams?

X: Natural
Y: Human-made

X: Limited
Y: Unlimited

X: Can be Replaced
Y: Cannot be Replaced

X: Used in Power Plants
Y: Not Used in Power Plants

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

About 140,000 japanese died in this japanese city when americans dropped an atomic bob at the end of world war ii

What factors britain to become an industrial and commercial power?