Explanation

• A species is a group of living organisms that share common characteristics, can interbreed, and produce fertile offspring.
• A particular group of animals or plants that belong together and have some similar quality.

Explanation

The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium.

The speed of sound is 343.2 metres per second.

Explanation

• A black hole is a region of space where matter has collapsed in on itself.
• It creating an incredibly dense and gravitational field so strong that not even light can escape.

Explanation

• Blue stars are hotter than red and orange stars.
• The temperature of stars increases from red to orange to yellow to white to blue, with blue stars being the hottest.

Explanation

• When a sound wave travels from one place to another, it transports energy from the source of the sound to the surrounding environment.
• Sound waves are a form of mechanical energy that is transferred through the vibration of particles in a medium, such as air or water.

Explanation

• Dispersion of light refers to the splitting of white light into its component colors, which are also known as the visible spectrum.
• This occurs when light passes through a medium with a refractive index that varies with wavelength, such as a prism.

Explanation

Reflecting prisms work on the principle of total internal reflection, where light is completely reflected back into the prism material rather than passing through the interface.

Explanation

• Convection is the primary mode of heat transfer in liquids and gases, where heat is transferred through the motion of fluids.
• This motion creates circulation currents that carry heat energy from one location to another.

Explanation

• In a longitudinal wave, a compression is a region where the particles are closest together.
• While a rarefaction is a region where the particles are farthest apart.

Explanation

• Stomata are small openings on the surface of leaves that allow for gas exchange.
• Including the entry of carbon dioxide and the release of oxygen and water vapor.