The vertical sequence of the layers of soil is called a soil

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.

Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia

Which statement best describes how chemical equations demonstrate conservation of mass?