1021Every Day ScienceMedium
The main cause of air pollution is __________?
ANone of these
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. Burning Of Fuels
Explanation
Burning Of Fuels is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Leukocytes
Explanation
Leukocytes is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Fibrous joint
Explanation
Fibrous joints are connected by dense connective tissue consisting mainly of collagen. These joints are also called fixed or immovable joints because they do not move. Fibrous joints have no joint cavity and are connected via fibrous connective tissue. The skull bones are connected by fibrous joints called sutures.
Correct answer
C. ¼
Explanation
¼ is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Nucleic acids
Explanation
Nucleic acids is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. 6.25×10 18
Explanation
6.25×10 18 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. produce small amount of hydrochloric acid required for digestion
Explanation
produce small amount of hydrochloric acid required for digestion is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. lactic acid
Explanation
Lactic Acid Like many other things, milk contains bacteria, Milk also naturally contains a kind of sugar known as lactose. The bacteria that live in milk get energy from this special sugar and use it to reproduce to make even more bacteria. When the bacteria use the lactose sugars to reproduce, they change it from lactose sugar into lactic acid, which tastes sour.
Correct answer
B. Mesopause
Explanation
The top of the mesosphere, called the Mesopause , is the coldest part of Earth’s atmosphere. Temperatures in the upper mesosphere fall as low as −101 °C (172 K; −150 °F), varying according to latitude and season.
Correct answer
B. 2.5 units
Explanation
2.5 units is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.