Ageologist finds rocks with dinosaur fossils.

what is most likely the approximate age of the rocks in which the dinosaur fossils were found?

a, 5 billion years old.
b, 70 million years old.
c, 1 thousand years old.
d, 500 million years old.

The majority of sulfur dioxide produced by industry comes from a. oil refineries. b. dry cleaners. c. chemical plants. d. coal-burning power plants.

Which statement names a physical property of wood? wood does not rustwood can burnwood can rotwood is softer than coal

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.