Mosquitoes actively seek out still, unmoving (stagnant) pools of water to lay their eggs because running water would wash the eggs and larvae away.
27. Mosquitoes lay eggs in………………
(A) Garbage
(B) Dustbin
(C) Water
(D) Air
Answer:
(C) Water
Explanation:
The initial stages of a mosquito’s life cycle (egg, larva, and pupa) are entirely aquatic, meaning they must lay their eggs directly in or near standing water to survive.
28. What is Anaemia?
(A) Iron deficiency disease
(B) Viral disease
(C) Fungal disease
(D) Calcium deficiency disease
Answer:
(A) Iron deficiency disease
Explanation:
Anaemia is a medical condition marked by a deficiency of red blood cells or of hemoglobin in the blood, most commonly resulting from a severe dietary lack of iron.
29. What kind diet is suggested for a patient of Anaemia?
(A) Apple
(B) Spinach
(C) Dates
(D) All of these
Answer:
(D) All of these
Explanation:
Apples, dark leafy greens like spinach, and dried fruits like dates are all excellent natural dietary sources of iron and are heavily recommended to combat iron-deficiency anemia.
30. Which organ is most affected by malaria?
(A) Kidney
(B) Heart
(C) Brain
(D) Liver
Answer:
(D) Liver
Explanation:
Upon entering the human bloodstream, malaria parasites immediately travel to the liver, where they mature, multiply, and eventually rupture the liver cells to re-enter the bloodstream.
