1 - An autistic child usually appears to go through his early development normally, but a break in development usually occurs by the age of three.

2 - In the referendum held on 20 May 1980, the people of Quebec rejected the proposal to break away completely from Canada.

3 - Due to extreme conditions in the Arctic, including reduced sunlight, extensive ice cover and cold temperatures, contaminants break down much more slowly than in warmer climates.

4 - The digestive system is made up of organs that break down food into protein, vitamins, minerals, carbohydrates, and fats, which the body needs for energy, growth, and repair.

5 - Planes are controlled by onboard computers, and those computers almost never break down.