Which of the following best explains the prevalence of Christian churches?

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.

Heyi am new to are you all americans? ( just want to know , i don't mean any offence ) ?

Read the article titled "castro resigns." why did the us impose trade sanctions against cuba in 1962?