Preventing forest fires is a primary method of conserving forests and protecting their biodiversity. Cutting them down or overgrazing causes deforestation and habitat destruction.
37. Traits that are passed on from parents to children through genes is known as:
(A) Acquired traits
(B) Non-acquired traits
(C) Non-inherited traits
(D) Inherited traits
Answer:
(D) Inherited traits
Explanation:
Inherited traits are physical or behavioral characteristics (like eye color or blood type) that are genetically transmitted from parents to their offspring.
38. Which part of our body is affected by polio?
(A) Kidney
(B) Lower limbs
(C) Heart
(D) Head
Answer:
(B) Lower limbs
Explanation:
The poliovirus attacks the central nervous system and most commonly causes muscle weakness and irreversible paralysis, predominantly affecting the lower limbs (legs).
39. Who is Mukadam?
(A) The agent for sugarcane factories.
(B) The agent who earn profit.
(C) The agent who lends money to poor villagers.
(D) None of them.
Answer:
(A) The agent for sugarcane factories.
Explanation:
In the context of rural labor migration (as taught in NCERT), a Mukadam is an agent or contractor who lends money to villagers and then recruits them to work in sugarcane fields to pay off the debt.
40. Which communities in India migrate for employment?
(A) Factory workers
(B) Farm Labourers
(C) None of these
(D) Both (a) and (b)
Answer:
(D) Both (a) and (b)
Explanation:
Both farm laborers (seeking seasonal agricultural work) and factory workers (seeking industrial jobs in cities) frequently migrate across India in search of better employment opportunities.
