If something has a density lower than water (fewer particles per cubic measurement), then it will float in water. If something has a higher density (more particles per cubic measurement), then it will sink in water.
Water has a density of 1g/ml, so an object with the lower density of 0.97g/ml will float in water. Hope this helps! :)
Answer:
Rock particles can become pollutants by/from the wind. That is called erosion.
They can also become pollutants from man-made tools. For example a tool the polishes rocks releases all the dust and powder substance from the rock into the atmosphere.
There are also minute volcanic which are rock fragments formed during explosive shattering of sticky magma.
<span>b. great increase in air, land and water pollution; no one to ensure proper disposal of toxic wastes; increased destruction of habitats; increase in species extinction
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Ferns are both seedless and vascular
The most common threat to the human body from an invading virus would be "c.viral reproduction will destroy one <span>healthy cells" although this is not always the case.</span>
