Deuterium differs from Hydrogen in having:

A. Different atomic number but same atomic weight B. Different atomic number and different atomic weight C. Same atomic number and different atomic weight D. None The correct answer to the question: “Deuterium differs from Hydrogen in having:” is “Same atomic number and different atomic weight”.

Equator passes through one of these countries___________?

A. Saudi Arabia B. Italy C. Japan D. None The equator passes through 13 countries: Ecuador, Colombia, Brazil, Sao Tome & Principe, Gabon, Republic of the Congo, Democratic Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia and Kiribati. The correct answer to the question: “Equator passes through one of these countries___________?” is “None”.