General science mcqs
1. What is the SI unit of force? a) Pascal b) Joule c) Newton d) Watt Answer: c Explanation: The SI unit of force is the Newton (N). One Newton is defined as the force required to accelerate a one-kilogram mass by one meter per second squared. It is a vector quantity, meaning it has both magnitude and direction. 2. Which of the following is a non-renewable resource? a) Coal b) Solar energy c) Biomass d) Wind energy Answer: a Explanation: Coal is a non-renewable resource because it is formed over millions of years from ancient plant matter. Once used up, it cannot be replaced on a human timescale. Unlike renewable resources, coal is finite and contributes to environmental degradation . 3. What is the primary function of the human digestive system? a) To regulate temperature b) To circulate blood c) To break down food and absorb nutrients d) To provide oxygen to the body Answer: c Explanation: The digestive system breaks down food mechanically and chemicall...