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1 Biology Mcqs

Vitamin B12 deficiency can lead to __________.

  • Insomnia
  • Microcytic anemia
  • Pernicious anemia
  • None of these
0 Comments
Correct Answer: C. Pernicious anemia

Explanation:

Vitamin B12, also called cobalamin, is a water-soluble vitamin essential for the production ... Read More Details

2 Physics MCQs

The side view mirrors of vehicles are usually of which type of mirror?

  • Convex
  • Concave
  • Plane
  • Inverted
0 Comments
Correct Answer: A. Convex

Explanation:

Mirrors are reflective surfaces that redirect light to form images. In vehicles, side ... Read More Details

3 Biology Mcqs

Reflex actions in the head region are under the control of __________.

  • Brain
  • Spinal cord
  • Both A & B
  • None of these
0 Comments
Correct Answer: A. Brain

Explanation:

Reflex actions are involuntary, rapid responses to stimuli that help protect the body ... Read More Details

4 Chemistry MCQs

What is the principal constituent of the Earth’s atmosphere?

  • Oxygen
  • Carbon
  • Hydrogen
  • Nitrogen
0 Comments
Correct Answer: D. Nitrogen

Explanation:

The Earth’s atmosphere is a layer of gases that surrounds our planet, providing ... Read More Details

5 Physics MCQs

Water has its maximum density and minimum volume at __________?

  • 0 °C
  • 4 °C
  • 100 °C
  • None of these
0 Comments
Correct Answer: B. 4 °C

Explanation:

Most substances contract as they are cooled and expand when heated. However, water ... Read More Details

6 Biology Mcqs

Diabetes can be classified into how many main types?

  • Two types
  • Three types
  • Four types
  • None of these
0 Comments
Correct Answer: B. Three types

Explanation:

Diabetes mellitus is a chronic metabolic disorder characterized by high levels of glucose ... Read More Details

7 Biology Mcqs

The human eye forms the image of an object at its __________.

  • Cornea
  • Pupil
  • Iris
  • Retina
0 Comments
Correct Answer: D. Retina

Explanation:

The human eye functions much like a camera. When light rays reflect off ... Read More Details

8 Everyday Science MCQs

What is the average distance of the Moon from the Earth?

  • 384,400 km
  • 350,000 km
  • 380,200 km
  • 384,500 km
0 Comments
Correct Answer: A. 384,400 km

Explanation:

The Moon, Earth’s only natural satellite, orbits our planet at an average distance ... Read More Details

9 Everyday Science MCQs

Which is the biggest star in the Universe discovered so far?

  • UY Scuti
  • Rigel
  • Canopus
  • Arcturus
0 Comments
Correct Answer: A. UY Scuti

Explanation:

Stars vary greatly in size and brightness. While our Sun is considered an ... Read More Details

10 Everyday Science MCQs

Which is the second brightest star in the night sky?

  • Betelgeuse
  • Vega
  • Canopus
  • None of these
0 Comments
Correct Answer: C. Canopus

Explanation:

When we look at the night sky, thousands of stars are visible, but ... Read More Details