REBECCA

Your body needs energy, protein, mineral, vitamins, and fiber. In order to get all of these, it is important to have a varied and balanced diet, and to eat the right the amount of food.Your body 'burns' food to energy: the amount of ebergy provided by food is measured in unit called calories.



How many calories do dou need? The depends on your weight and what you do. When you are asleep, your body uses nearly one calorie an hour for every kilogram of weight.So a personwho weighs seventy kilos, used about 560 calories while sleeping for eight hour. More calories are needed for different activities-from 1000 calories an hour for reading or wathcing TV, to 350 calories an hour for palying football.

To calculate the number of calories needed per day for an average person, find out the person's ideal weight. Ten multipy the weight by 40 for a women and 46 for a man. A 60-kilo woman may need about 2400 calories a day-mmore if she does heavy physical work and less if she is very inactive

The Blue Whale is largest whale and the largest living creature on earth. Blue whales were hunted a lot for oli, baleen, meat, and other products from the 1930s to the 1960s. This hunting almost caused the extinction of the species. They are now protected and may gradually be returning in several areas.

Blue whales are mainly found in very cold waters, like the Arctic and  Antartic waters. They migrate to the tropics in the winter and to the Arctic and Antartic in summer.




Blue whales can reach over 24 m (80ft) long; mature females are usually a bit longer than mature males. They weight betwen 87,500 - 142,500 kg. The skin has a light grey anda white spotty pattern.

Blue whales feed by opening its mouth into dense groups of small sea creatures like plankton, krill of fish.

Blue whales are mammals. They give birth once every two of thee years. Mating occurs during the summer season, and they give birth after 11 mounths. The calf nurse for seven or eight months and gain weight about 90 kg (200 lb) per day.