Task 2 (23)

1)Sunlight has the property to bleach wood, decompose plastic and lighten your hair because sunlight breaks down the molecular layers that absorbs the light and heat. The skin darkens because the natural tanning that occurs is a safety measure to keep the skin from doing the same, breaking down. People who live in more sunny areas get darker skin than those who live in less sunny environments due to clouds, etc. People who live in hotter climates get more curly hair and a more open nose as an end result to reduce heat.

2)oil from plants are mainly extracted from their seeds.

3) The reason that they can hold its breathe so long is that, they shut the holes on it's surface and stop breathing.Cockroaches do not breathe using their mouths. Instead, they breathe through a system of tubes attached to the surface of their body. They only die being unable to eat without a head.

Keith 3e3 23

Air conditioning is the cooling of indoor air for comfort. In a better sense, the term can refer to any form of cooling, heating, ventilation, or disinfection that improves the condition of air. An air conditioner is an appliance, system, or machine designed to stabilise the air temperature and humidity within an area, typically using a refrigeration cycle but sometimes using evaporation, commonly for comfort cooling in buildings and motor vehicles.
The concept of air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them. Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier.

-Keith 3e3 23