IDAT - International Diagnostic and Admission Global Knowledge and Science Questions and Answers

Question 1

A hydroelectric power plant generates electricity by utilizing water stored at a high elevation behind a dam.
Which of the following best describes the primary energy transformation that occurs to generate this electricity?

Accepted Answer

Potential energy to electrical energy

Answer

Chemical energy to electrical energy

Answer

Nuclear energy to mechanical energy

Answer

Solar energy to kinetic energy

Question 2

The relationship between clownfish and sea anemones is a well-known example of symbiosis. The clownfish receives protection from predators within the anemone's stinging tentacles (to which it is immune), while the anemone benefits from the clownfish cleaning it and scaring away its predators. What is this specific type of symbiotic relationship called?

Accepted Answer

Mutualism

Answer

Parasitism

Answer

Commensalism

Answer

Predation

Question 3

When solid carbon dioxide, commonly known as 'dry ice,' is left at room temperature, it turns directly into a gas, completely bypassing the liquid phase. What is the scientific term for this physical process?

Accepted Answer

Sublimation

Answer

Evaporation

Answer

Condensation

Answer

Deposition

Question 4

The 'Ring of Fire' is a major area in the basin of the Pacific Ocean renowned for its frequent earthquakes and volcanic eruptions. What is the primary geological cause of this intense activity?

Accepted Answer

The convergence, divergence, and collision of major tectonic plates

Answer

Erosion of continental shelves by strong ocean currents

Answer

The unusual depth of the Pacific Ocean basin

Answer

The weakening of the Earth's crust by meteorite impacts

Question 5

Which scientist is credited with the discovery of penicillin in 1928, which was the world's first broadly effective antibiotic and fundamentally changed the treatment of bacterial infections?

Accepted Answer

Alexander Fleming

Answer

Marie Curie

Answer

Louis Pasteur

Answer

Gregor Mendel

Question 6

Photosynthesis is the process used by plants and other organisms to convert light energy into chemical energy. Which of the following are the essential reactants (inputs) for this process?

Accepted Answer

Carbon dioxide and water

Answer

Oxygen and glucose

Answer

Nitrogen and soil

Answer

Glucose and water

A hydroelectric power plant generates electricity by utilizing water stored at a high elevation behind a dam.Which of the following best describes the primary energy transformation that occurs to generate this electricity?

A hydroelectric power plant generates electricity by utilizing water stored at a high elevation behind a dam.
Which of the following best describes the primary energy transformation that occurs to generate this electricity?