Help I need Help for 10 points

Which of the following is the most likely result of converting forestland to urban development? a.the amount of land available for lumber production decreases. b.fewer trees are needed because cities are made mainly of concrete. c.people discover more efficient ways to grow trees. d. the price of lumber goes down.

What is thought to have caused the mass extinction at the end of the cretaceous period?

What are examples of the plant life and animal life that can be found in each type of terrarium