FREE NeSA Science Questions and Answers
What is the main function of the roots in a plant?
Correct!
Wrong!
Roots absorb water and minerals from the soil and anchor the plant securely in place.
Which layer of Earth is composed mostly of liquid iron and nickel?
Correct!
Wrong!
The outer core is a liquid layer composed mostly of iron and nickel, and it lies beneath the mantle and surrounds the solid inner core.
Which process is primarily responsible for the oxygen in Earth’s atmosphere?
Correct!
Wrong!
Photosynthesis is the process by which plants, algae, and some bacteria convert carbon dioxide and water into oxygen and glucose, using sunlight as energy.
Which of the following best describes the function of the mitochondria in a cell?
Correct!
Wrong!
Mitochondria are the powerhouses of the cell, producing ATP through cellular respiration, which provides energy for cellular functions.
What type of energy transformation occurs in a solar panel?
Correct!
Wrong!
Solar panels convert sunlight (light energy) directly into electricity (electrical energy) through the photovoltaic effect.