A mineral is a naturally occurring inorganic solid that has a fix chemical composition.
Another naturally occurring solid substance is Rocks.
Rocks are different from the Minerals as they are composed of several minerals and have different proportion of chemical compounds present in them along with some organic components also.
Explanation:
- Minerals have a fix chemical composition and are classified as metallic minerals, non metallic minerals and mineral fuels.
- Minerals are of immense use as they are the source from which pure elements can be obtained.
- Some examples of common minerals are Magnetite an ore of irone, Bauxite an ore of aluminium, Limestone, coal an example of mineral fuel.
Answer:
A heart attack occurs when the flow of blood that carries oxygen to the heart is blocked. The myocardium is deprived of oxygen and begins to die.
A person who has a heart attack may have some of these symptoms, or all of them:
Uncomfortable pressure, inflammation or oppressive pain in the center of the chest
Discomfort or pain that spreads beyond the chest to the shoulders, back, neck, jaw, teeth, one or both arms, and sometimes the upper abdomen
Shortness of breath
Stun, dizziness and fainting
Sweating
Sickness
Usually, a heart attack causes chest pain for more than 15 minutes, but it also may not show any symptoms. It is important to know that other symptoms may occur in addition to chest pain, such as indigestion or persistent pain in the neck or jaw.
Many people who have a heart attack have warning signs in advance of hours, days or weeks.
Answer:
You need to put the species... I can't figure it out if there's just random numbers and letters...
Explanation:
Bird droppings that contain seeds from a different location" is the correct answer. Sometimes when seeds from different areas are ingested, the genetic material is passed on.
It's important because it is easy to apply it too tightly and impede circulation. Allows for smoother fit and prevents gaping caused by variation in contour of the limb.
