Home Practice Question 720
Hard
 SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · . Sample

Which adaptation helps a cactus survive in deserts?

Related Questions

In the food chain Grass → Grasshopper → Frog → Snake → Eagle, the producers (grass) contain 10,000 J of energy. Following the 10% law, how much energy is available to the snake?

SOF National Science Olympiad (NSO/ISO) .
Hard
· Biology · 2026
See Explanation

How much heat is required to raise the temperature of 2 kg of water from 20 °C to 50 °C? (Specific heat capacity of water = 4200 J/kg °C)

SOF National Science Olympiad (NSO/ISO) .
Medium
· Physics · 2026
See Explanation

A few drops of dilute hydrochloric acid are added to sodium carbonate. A gas is evolved that turns lime water milky. The gas is:

SOF National Science Olympiad (NSO/ISO) .
Easy
· Chemistry · 2026
See Explanation

A measuring cylinder contains 40 mL of water. When a stone is gently dropped into it, the water level rises to 65 mL. What is the volume of the stone?

SOF National Science Olympiad (NSO/ISO) .
Easy
· Physics · 2026
See Explanation

Most non-metals are poor conductors of electricity. Which of the following non-metallic forms is a good conductor of electricity?

SOF National Science Olympiad (NSO/ISO) .
Medium
· Chemistry · 2026
See Explanation