In each of the following questions there are two statements. One is assertion (A) and other is reasoning (R). Mark the correct answer as Assertion : Predation is a form interaction. Reason : It is similar to parasitism.
Assertion : Haemoglobin contains iron. Reason : Iron deficiency leads to anaemia.
Assertion and Reason. Mark the correct choice as: Assertion: The SI unit of temperature is kelvin. Reason: Thermometers are calibrated with some standard scales like celsius, fahrenheit and kelvin.
Assertion : Surgical methods of contraception help to prevent implanation . Reason : They are barrier methods .
Assertion : combustion reactions are also called as an exothermic and reason . Reason : in these reaction , oxygen is added and heat energy is released .
Assertion (A) : Auxins help in apical dominance. Reason (R) : They induce elongation of stems.
Assertion : The cells of endothecium are hygroscopic in nature. Reason : They absorb water from air.
Assertion : Over-exploitation of a species reduces the size of its population eventually leading to its extinction. Reason : Steller's sea cow is a large, herbivorous, terrestrial mammal which is on the verge of extinction due to over exploitation. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.
Assertion: In nature, the recycling of carbon is essentially a self-regulating feedback system. Reason: The reservoir pool of carbon consists of free CO2 in the atmosphere. (a) Assertion and reason, both are correct. Reason is the correct explanation for assertion. (b) Assertion and reason, both are correct. Reason is not the correct explanation for assertion. (c) Assertion is correct but reason is not correct. (d) Reason is correct but assertion is not correct.
NCERT TAMIL-ANIMALS IN DAILY LIFE-EVALUATION (X. Assertion and Reasoning)
