What are the two main classifications of minerals?

What are the two main classifications of minerals? The two kinds of minerals are: macrominerals and trace minerals. Macro means “large” in Greek (and your body needs larger amounts of macrominerals than trace minerals). The macromineral group is made up of calcium, phosphorus, magnesium, sodium, potassium, chloride, and sulfur. How many types of minerals are […]

What comes through nuclear pores?

What comes through nuclear pores? Each nuclear pore is a large complex of proteins that allows small molecules and ions to freely pass, or diffuse, into or out of the nucleus. Similarly, RNA transcribed in the nucleus and proteins that are destined to enter the cytoplasm have nuclear export sequences that tag them for release […]

Which material does sound travel fastest through?

Which material does sound travel fastest through? How fast speed travels, or the speed of sound, depends on the kind of matter it is moving through. Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Can you hear sounds better […]

Do light bulbs have high or low resistance?

Do light bulbs have high or low resistance? Incandescent light bulbs have a small filament which when heated begins to glow and emit light. The reason the filament heats up is because it has a high resistance, which means that as electrons move through the filament, they lose a lot of energy. Does a brighter […]

Why did F1 stop using slicks?

Why did F1 stop using slicks? Formula 1 got rid of the ‘slicks’ and re-introduced ‘grooved’ tyres. The sole purpose of the move was to curb the increasing cornering speeds. Those grooved tyres had three parallel grooves in the front tyres and four parallel grooves in the rear tyres. Are F1 Tyres smooth? ‘Slick’ tyres […]

What are the main components of a map?

What are the main components of a map? There are three Components of Maps – distance, direction and symbol. Maps are drawings, which reduce the entire world or a part of it to fit on a sheet of paper. Or we can say maps are drawn to reduced scales. But this reduction is done very […]

How can I tell if my glass is heat-resistant?

How can I tell if my glass is heat-resistant? If it is a heat-resistant glass, there will generally be a corresponding label on the glass, indicating the temperature and range of use; If you find nominal Pyrex glass at a low price, consider its authenticity. Is all glass heat-resistant? Glass is thermal-shock resistant, meaning it […]

How far away can the siren be heard?

How far away can the siren be heard? The physics of sound will reduce the volume of the siren as the distance from the siren increases. With today’s modern vehicles, the effective range of the siren at a 90-degree intersection is often no more than 80 feet. Does pitch change with distance? Sound waves that […]

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