1. Melting and boiling point increase as the atomic number increases.
Most of the absorption of nutrients occurs in the small intestine.
Respiration using oxygen to break down food molecules is called aerobic respiration. 'Aero' means air, which contains oxygen, leading to the name aerobic respiration. Glucose is the molecule normally used for respiration - it is the main respiratory substrate. Glucose is oxidised to release its energy, which is then stored in ATP molecules.
The word equation for aerobic respiration is:
glucose + oxygen → carbon dioxide + water (+ ATP made)
You need to be able to recognise the chemical formulas:
C6H12O6 + 6O2 → 6CO2 + 6H2O
Answer:
Deforestation and the burning of fossil fuels
Explanation:
Deforestation leads to less carbon dioxide to oxygen production, and burning fossil fuels releases large amounts of carbon dioxide.
