MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
B. Neutron
Explanation
Neutron is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Lithotripsy
Explanation
Lithotripsy is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Uranus
Explanation
Uranus: the first planet discovered with a telescope.
Correct answer
D. Samuel Morse
Explanation
Samuel Morse is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Water
Explanation
Water is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. sodium
Explanation
sodium is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. 360
Explanation
Since a sphere has 360 degrees, the Earth is divided into 360 longitudes. The meridian opposite the Prime Meridian (on the other side of the Earth) is the 180° longitude and is known as the anti meridian.
Correct answer
A. North Pacific Ocean
Explanation
North Pacific Ocean is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Hydrogen 10%
Explanation
Hydrogen 10% is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Dentist
Explanation
Dentist is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.