Every Day Science MCQs with Explanations

Explanation

The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth’s terra firma. The terrestrial planets are the four innermost planets in the solar system.

Explanation

Zoology is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Nylon is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

irregular shape of the molecules and strong inter-molecular forces is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

12 persistent organic pollutants is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

An aneroid barometer is an instrument used for measuring pressure as a method that does not involve liquid. Invented in 1844 by French scientist Lucien Vidi, the aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule), which is made from an alloy of beryllium and copper.

Explanation

Boron is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Cu + Ni is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

The Equator, or line of 0 degrees latitude, divides the Earth into the Northern and Southern hemispheres. The Northern Hemisphere contains North America, the northern part of South America, Europe, the northern two-thirds of Africa, and most of Asia.

Explanation

Fluorine is the most electro-negative element and also the most reactive non-metal.