What is the chemical formula for carbon dioxide?

Which type of cloud is thin and wispy, found at high altitudes and composed of ice crystals?

Which gas is responsible for the smell of rotten eggs?

What is the name for the layer of loose, unconsolidated material covering the Earth's surface and consisting of mineral and organic particles?

What is the term for the process by which sedimentary rocks are formed from the accumulation and compaction of plant and animal remains?

Which part of the human ear is responsible for detecting sound vibrations and transmitting them to the brain?

Which layer of the Earth is primarily composed of iron and nickel and is responsible for generating the planet's magnetic field?

What is the balanced chemical equation for the reaction between hydrogen and oxygen to form water?

In plant cells, what organelle is responsible for photosynthesis?

What is the primary gas in Earth's atmosphere?