Answer:
<em>Ways to prevent stomach diseases</em><em> </em><em>are</em><em> </em><em>as</em><em> </em><em>given</em><em> </em><em>below</em><em>:</em><em>-</em>
<em><u>Chew food thoroughly, and don't overeat.</u></em>
<em><u>Avoid raw shellfish if you're not sure the source is a safe one.</u></em>
<em><u>Limit your intake of fats and alcohol.</u></em>
<em><u>Get plenty of fluids</u></em><em><u>Exercise daily.</u></em>
<em><u>Exercise daily.</u></em>
<em><u>Avoid foods that cause gas.</u></em>
<em><u>Avoid sweeteners that cause gas such as fructose and </u></em><em><u>surbiton</u></em><em><u> </u></em>
Because of the nitrogen cycle all of the above answers are correct
Answer: The different layers are a result of lighter parts (such as the continental crust) settling at the surface level and heavier parts (such as iron and nickel in the core) settling in the middle. The layers separate by density, otherwise known as compositional layering. The earth did not always have these layers, as it had to undergo cooling to form some of them (like the continental crust).