Answer:
20.9 percent
Around 78% of the air is nitrogen gas, and only 20.9% is oxygen.
Explanation:
20.9 percent
Around 78% of the air is nitrogen gas, and only 20.9% is oxygen.
Hope this helps.
Answer:
Carbohydrates in the body are used to provide energy to the body. It is also called glucose. For example vegetables, whole fruit, legumes, potatoes and whole grains.
The role of fat is also to provide energy after being broken in the form of fatty acids. For example butter, oil, nuts, meat, fish, and some dairy products.
Protein on the other hand primarily helps in the making of muscles, hormones and other proteins, secondly it also provides energy to the body. For example Lean meat, poultry, fish, eggs, cheese and milk.
Answer:
number 1 i believe is the righ answer
Treating a city's water supply to remove any bacteria and impurities as clean and hygenic water supplies benefits the public/society.
