Cleopatra's Needle is a large granite monument, which stood in Egypt form 1450 B. C. Unitl 1880 when it was moved to New York City. The sides of the monument were carved with hieroglyphics, the writing of the ancient Egyptians. However, shortly after it was moved to a NYC park, the hieroglyphics began to fade. Explain what process is taking place and why.

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

Which type of seismic waves are confined at the surface