Iron nail. the rest of those are not iron or some form of magnetic material.
Salt is made in in the water the seaweeds have slat on them of you let the seaweeds dry you can see the salt on them.
Answer:
<h2>4 calories</h2>
Explanation:
Carbohydrates are known as energy giving foods and they are contained in our diets no matter how small. Other components of foods are protein, fat and oil, vitamin, water etc. A calorie is a unit of energy. It tells us the amount of energy the weight of any food contains. Knowing the amount of calories of food we are taking in helps us to monitor our weight. Each component of food have their own calories depending on the weight of the food component.
For carbohydrate as a component of food,<em> 1gram of carbohydrates contains 4 calories</em>. With this conversion, we can therefore calculate the calories of carbohydrate we are taking in by taking the weight of the food we want to eat.
<em>Hence, approximately 4 calories are in one gram of carbohydrates</em>
Answer:
From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. The spectral line also can tell us about any magnetic field of the star. The width of the line can tell us how fast the material is moving. We can learn about winds in stars from this.
Explanation:
