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
C. Parthenocarpic fruits
Explanation
Parthenocarpic fruits is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Illumination
Explanation
Illumination is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Jupiter
Explanation
Jupiter is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Cause
Explanation
Cause is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. The length of the day will increases
Explanation
The length of the day will increases is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Fats
Explanation
The most basic kind of soap is made from caustic soda and animal fat. The two are heated together, and then cooled. The process is called “saponification”. In technical terms, saponification involves base (usually caustic soda NaOH) hydrolysis of triglycerides, which are esters of fatty acids, to form the sodium salt of a carboxylate.
Correct answer
A. UY Scuti
Explanation
The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun. And it’s not alone in dwarfing Earth’s dominant star.
Correct answer
A. Distance
Explanation
parsec, unit for expressing distances to stars and galaxies, used by professional astronomers. It represents the distance at which the radius of Earth’s orbit subtends an angle of one second of arc.
Correct answer
D. Northern lights
Explanation
The aurora borealis, also known as the ‘northern lights’, is one of the most spectacular displays in the night sky. An aurora, also known as the polar lights or aurora polaris, is a natural light display in Earth’s sky, predominantly seen in high-latitude regions. Auroras display dynamic patterns of brilliant lights that appear as curtains, rays, spirals, or dynamic flickers covering the entire sky.
Correct answer
A. distance
Explanation
distance is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.