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3.5 Energy and Nutrition
Light and snow cover have diminished in a lot of the world.
The ice sheets are breaking apart.
The sea level will rise due to the CO2 change.
The sea level rose in the twentieth century.
The sea level will rise in this century.
It will have a big impact on coastal areas.
The CO2 layer in the atmosphere traps the heat from the Sun.
The ability of plant life to absorb carbon dioxide is not keeping up with the increase in carbon dioxide.
Scientists are looking at ways to provide alternative energy sources.
For the years from the possible impact of climate change and at the same time save our 1800 c.e., an effort worldwide will reduce Atmospheric carbon dioxide levels.
The energy values can be used to calculate the calories in a food.
The growth and repair of cells can be done with the food we eat.
Carbohydrates are the primary fuel for the body, but if the reserves are exhausted, fats and proteins are used for energy.
For a long time, the energy from food was measured in calories or kilo calories.
Try Practice Problems 3.29 has an energy content of 100 kcal or 480 kJ, and a baked potato has an energy content of 100 calories.
A diet that provides 2200 cal is the same as a diet that provides 3000 cal.
Oxygen from burning a sample of food in a steel calorimeter is used to determine the chamber energy value.
The food sample increases the temperature of the water.
The energy value for the food is calculated from the mass of food and water as well as the temperature increase.
The energy absorbed by the calorimeter is small.
The energy content of packaged food is listed on the Nutrition Facts label.
The energy values in kilo calories were used to calculate the food type.
The energy for each food type was rounded off.
The given and needed quantities should be stated.
It was rounded off to the tens place.
The total energy from the food should be added to each food type.
For one serving of crackers, calculate the energy for each food type.
A person's age, gender, and level of physical activity affect their energy requirements.
The levels of energy needs are given in tAbLE.
A person gains weight when they eat more than they consume.
The brain is located in the hypothalamus.
If they are high, you don't feel like eating.
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