Everyday Science MCQ (Multiple Choice Questions)

Correct Answer: D. 62.
Saturn is known for its extensive system of moons, with a current total of 62 confirmed moons. The largest of these moons is Titan, which is the second-largest moon in the entire solar system. Many of Saturn’s moons are small, irregularly shaped objects that are thought to be captured by asteroids or comets. The discovery of new moons is ongoing, with some candidates still being studied and awaiting confirmation.

Correct Answer: C. 27.
Uranus has 27 known moons, all of which are named after characters from the works of William Shakespeare and Alexander Pope. The largest of these moons are Titania, Oberon, Umbriel, Ariel, and Miranda.

Correct Answer: D. 13.
Neptune has 13 moons, which are named after characters from Greek and Roman mythology associated with Neptune or Poseidon, the god of the sea. The largest of Neptune’s moons is Triton, which is also the seventh-largest moon in the solar system.

Correct Answer: C. Cancer.
Oncology is the branch of medicine that deals with the prevention, diagnosis, and treatment of cancer. It includes the study of the causes, development, and progression of cancer, as well as the various treatment options available. Oncologists are medical specialists who specialize in the treatment of cancer and work closely with other healthcare professionals, such as surgeons and radiation therapists, to provide comprehensive care to cancer patients.

Correct Answer: A. longest day.
Summer solstice means the longest day. It is the day with the longest period of daylight and the shortest period of darkness. This occurs when the tilt of the Earth’s axis is most inclined towards the sun, resulting in the northern hemisphere receiving the most direct sunlight. The summer solstice typically occurs on June 20th or 21st in the northern hemisphere and December 21st or 22nd in the southern hemisphere.

Correct Answer: B. Moon.
The Moon is a natural satellite of the Earth, meaning it is an object in space that orbits the Earth. The Sun is a star, not a satellite, and Venus and Mercury are planets that orbit the Sun, not the Earth.

Correct Answer: B. Group.
Columns in the periodic table are called groups or families. The elements in the same group have similar chemical and physical properties, and they have the same number of valence electrons in their outermost shell. There are 18 groups in the modern periodic table.

Correct answer: A. Period.
Rows in the periodic table are called periods. There are seven periods in the modern periodic table, and each period corresponds to a principal quantum number in the electron configuration of the elements in that row. The elements in a period have the same number of electron shells or energy levels, but the number of electrons in the outermost shell, or valence shell, increases from left to right within the period. The properties of the elements also show a regular variation along a period, which is the basis for the periodicity observed in the periodic table.

The modern periodic table consists of 18 columns (groups) and 7 rows (periods). So, the correct answer is A. 18 columns and 7 rows.

The correct answer is B. Decreases.
During sleep, blood pressure typically decreases. The body’s natural circadian rhythms, which control many physiological processes, including blood pressure, cause blood pressure to dip during the night. This is known as nocturnal dipping.
In fact, it is normal for blood pressure to drop by about 10-20% during sleep, compared to waking hours. However, in some people, blood pressure may not drop during sleep, or may even increase, which can increase the risk of cardiovascular disease.