and are ash volcanoes

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.

What is the y-coordinate of the point that divides thedirected line segment from j to k into a ratio of 2.3? -6-557

Answer this asap. why did the americans go to china? a. trading b. exploration c. land d. live stock