Explanation

• Myopia (Nearsightedness) is an eye defect in which near objects are clear but distant objects appear blurred.
• It occurs when the image forms in front of the retina instead of on it.
• It is corrected by using a concave (diverging) lens.
• The concave lens helps to shift the image back onto the retina.

Last verified on 01-04-2026

Explanation

Uranus is the planet in our solar system that rotates on its side

• Rotates on its side (axial tilt ~98°), appearing to spin sideways
• 7th planet from the Sun
• 3rd-largest planet in the solar system
• Very cold and windy
• Has faint rings and more than two dozen small moons

Last updated by NS on 06-09-2026​

Explanation

• Red blood cells lack a nucleus to maximize space for hemoglobin, which carries oxygen.
• More hemoglobin means more oxygen transport.
• This makes RBCs highly efficient for gas exchange.
• Lack of nucleus also gives them a flexible shape.
• This helps them pass through narrow blood capillaries.

Last verified on 14-06-2026

Explanation

To convert Celsius to Kelvin, use: K = °C + 273

• Given temperature = 37°C
• 37 + 273 = 310 K

Additional information:

• 0°C = 273 K
• 100°C = 373 K

Last verified on 06-09-2026

Explanation

• The spinal cord is not part of the brain; it is part of the central nervous system (CNS).
• The brain is broadly divided into forebrain, midbrain, and hindbrain.
• Pons and medulla oblongata are parts of the brainstem.
• The hindbrain includes the pons, medulla oblongata, and cerebellum.

Last verified on 06-09-2026