carbon cycle

How is carbon dioxide made in a laboratory?

• Add hydrogen peroxide to manganese dioxide

• Add hydrochloric acid to marble chips

• Add manganese dioxide to marble chips

• Add peroxide to marble chips

How can one test for the presence of carbon dioxide in a laboratory?

• Using a glowing splint

• Using Lime water

• Using peroxide

• Using hydrochloric acid

The diagram shows the carbon cycle. What is the role of bacteria in this cycle?

• Decomposers

• Herbivores

• Omnivores

• Carnivores

What food nutrient does plant convert carbon dioxide into by the process of photosynthesis?

• Fats

• Protein

• Carbohydrates

• Fiber

What is one way carbon dioxide is taken from the atmosphere?

• Oceans and bodies of water

• Decomposition

• Fossil Fuel

• Factory Emission

Which is not a way carbon dioxide is released into the atmosphere?

• Photosynthesis

• Volcanoes and fire

• Respiration

• Decomposition

Which component of gas is contributing to Global Warming?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Rare gases

When combustion is incomplete wheat is the name of the substance that is created?

• Soot

• Graphite

• Fossil fuel

• Coal

The diagram shows a diamond, what type of element is it made of?

• Aluminum

• Graphite

• Boron

• Copper

What percentage of air is carbon dioxide?

• 21%

• 1.17%

• 78%

• 0.03%