sicence ai practice

what is oxidation

• Oxidation is the gain of electrons by a substance.
• Oxidation is the process of combining with hydrogen.
• Oxidation is the release of energy from a substance.
• Oxidation is the chemical reaction of oxygen and other substances

how many varieties of minerals are there on earth

• 2,000

• 1,000

• 500

• 4,000

what theory did alfred wegener develop

• the theory of evolution
• the theory of continental drift
• the theory of plate tectonics
• the theory of relativity

what does pangea mean in science

• all of earth

• all the ocean

• another word for lithosphere

• ancient chemical artifacts

what are tectonic plates

• Tectonic plates are liquid layers of the Earth's core that flow freely.
• Tectonic plates are the various types of rocks found on the Earth's surface.
• large, solid, and slowly moving pieces of earth.

• Tectonic plates are small, flexible pieces of the Earth's atmosphere.

what boundary moves apart

• Divergent boundary
• Transform boundary
• Convergent boundary

what boundary pushes together

• Convergent boundary
• Divergent boundary
• Transform boundary

what boundary slides side by side

• Convergent boundary
• Divergent boundary
• Transform boundary

what is sea floor spreading

• New oceanic crust forms all ocean ridges

• Process of ocean water evaporating to form clouds.

• Movement of tectonic plates towards each other.

• Sinking of oceanic crust into the mantle at subduction zones.

what is convection current

• Transform of thermal energy by movement of heated material from one place to another.

• Convection current is the process of heat transfer through direct contact.
• Convection current refers to the movement of solid objects in space.
• Convection current is the flow of air caused by wind.