A student is developing a model to explain the pattern of seasons on Earth. The student is drawing Earth in different positions around the sun. What details about Earth’s axis should the student include in the drawing?

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a.soft fossils b.mold fossils c.index fossils d.trace fossils

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid