Which of the following statements about technology and its impact on humans is more accurate? a. technology can always provide the best solutions for human problems. b. technology has had little effect on the course of human history. c. technology often has drawbacks as well as benefits. d. technology is a twenty-first century human development.

The table below shows the number of foot bones in some horse fossils.horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

20 the compound al(nh3)2 has atoms of nitrogen.

Deserts (especially true deserts) are not easy places for animals to live. animals who live in them often have special features that them survive. which adaptation would be for this group of animals? a) keen eye sight b) short, narrow legs c) tolerate heat d) webbed feet