Every Day Science MCQs with Explanations

Explanation

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

Explanation

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

Explanation

Magnetic resonance imaging (MRI), nuclear magnetic resonance imaging (NMRI), or magnetic resonance tomography (MRT) is a medical imaging technique used in radiology to visualize internal structures of the body in detail. MRI makes use of the property of nuclear magnetic resonance (NMR) to image nuclei of atoms inside the body. An MRI scanner is a device in which the patient lies within a large, powerful magnet where the magnetic field is used to align the magnetization of some atomic nuclei in the body, and radio frequency fields to systematically alter the alignment of this magnetization. This causes the nuclei to produce a rotating magnetic field detectable by the scanner—and this information is recorded to construct an image of the scanned area of the body.

Explanation

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

Explanation

99.86% is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Microscopes use convex lenses in order to focus light. Convex lens is thinner at the edges and thicker at the center.

Explanation

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

Explanation

According to NASA officail website: Jupiter has now 79 moons . The most of any planet in our Solar System.

Explanation

The formulas for converting between degree Celsius and degree Fahrenheit are: °F = (°C * 9/5) + 32 °C = (°F – 32) * 5/9 To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations. °C = (°C * 9/5) + 32 °C – (°C * 9/5) = 32 -4/5 * °C = 32 °C = -32 * 5/4 °C = -40 °F = (°F * 9/5) + 32 °F – (°F * 9/5) = 32 -4/5 * °F = 32 °F = -32 * 5/4 °F = -40 So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees.

Explanation

Bones provide a rigid framework, known as the skeleton, that support and protect the soft organs of the body. The skeleton supports the body against the pull of gravity.