The land in mexico city has subsided about feet in the last 100 years, and the rate is a. 10 . . staying the same b. 10 . . increasing c. 30 . . decreasing d. 30 . . increasing

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.

Need now! 45 points laboratory: weather map interpretation i need someone to answer the other two questions. i will give to the best answer!

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration