Identify which of the following statements is/are correct. Isotopes of uranium have the same: I. number of protons
II. number of neutrons
III. mass number

A. III only

B. I only

C. II only

D. I and III only

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world