Question 31
Tick (✓) the correct sentences.
- Earthquakes happen when tectonic plates suddenly slide past each other at the plate boundary.
- Magnetic poles of the Earth did not swap positions, so the alignment of magnetic materials in the bands of rock in the seafloors refutes the movement of tectonic plates.
- Carbon is part of many different compounds that make up cells, such as carbohydrates, fats and proteins.
- Decomposers break down dead matter and release carbon into the atmosphere as carbon dioxide during respiration, playing an important role in the carbon cycle.
- Carbon compounds help to regulate the Earth's climate, so a change in the amount of carbon dioxide in the atmosphere can cause climate change.
