MCQ
Assertion : An infection develops when pathogens enter the human body.
Pathogen enters the human body through contaminated air, water, food, soil, physical contact etc.
  • 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 the reason is not the correct explanation of assertion.
  • C
    If Assertion is true but Reason is false.
  • D
    If Assertion is false but Reason is true.

Answer

Both assertion and reason are true and Reason is the correct explanation of Assertion

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Assertion: The speed of a body can be Negative.
Reason : If the body is moving in the opposite direction of positive motion, then its speed is Negative.
(a) If both assertion & reason are true and the reason is the correct explanation of the assertion.
(b) If both assertion & reason are true but the reason is not correct explanation of the assertion.
(c) If the assertion is true but the reason is false.
(d) If assertion & reason both are false.
(e) If assertion is false but reason is true.
Assertion : Hydroponics can be defined as a soilless growing system in which plants grow in water.
Reason : If a plant is provided with water, minerals and required nutrients, it will grow well and yield more even in the absence of soil.
Assertion : The production of food from animal sources has increased greatly in the last few decades.
Reason : Operation flood and blue revolution production has increased in recent years.
Assertion (A) : Mass, Length and Time are fundamental physical quantities.
Reason (R) : They are independent of each other.
(a) Both A and R are true but R is not the correct explanation of A.
(b) Both A and R are true and R is the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Assertion : The air bubble shines in water.
Reason : Air bubble shines due to refraction of light.
Assertion: Sun is a medium-sized star.
Reason: Sun is situated at the centre of the solar system.
Assertion (A): Electric current will not flow between two charged bodies when connected if their charges are the same.
Reason (R): Current is the rate of flow of charge.
Assertion (A) : After eating fruits (or) vegetables, one may feel uncomfortable due to a burning sensation.Reason (R) : Burning sensation is due to an imbalance in the acidity of the stomach.
Assertion (A) : Antiseptic is a substance that prevents infections caused by disease-causing pathogens.
Reason (R) : Antiseptics either kill the microorganism or prevent their growth.
Assertion (A): Fruits and vegetables are placed at the bottom of a food pyramid. Reason (R): They must be consumed in more quantities for good health.