i duno why ask me?
Sediment can be lots of different things. If your on a well, you probably have naturally occurring minerals that tend to stick to your plumbing. After a while, these minerals will flake off and appear in your water. They are not harmful.
the H+ ion is what causes things to be acidic , the OH- ion is what causes things to be basic
It depends on the viewing angle: by reflected light the crystals appear dark green, but by transmitted light they appear purple. they also change colour depending on whether they are dry crystals (yellow) or have water attached (green).
Biotechnology
Beta Carotene can appear yellow, orange, or brown depending on its concentration. A dilute mixture of beta carotene will appear yellow as there isn't enough of it to absorb the extra light needed to make it appear orange.
why the things look to be coloured
they r coloured due to electronic transitions in the constituent atoms....and photons are emitted which fall in the visible range..hence they appear coloured
The euro becomes gold colored because of the mixture of metals. When certain metals are melded together, the reactions can cause several colors to appear.
that is the vacuole, it contains the sugary substances and other things such as water
The rotation of the earth is what causes the sun to appear to set
There are many things you can do to maximize a small space.One designer suggests going with curvy furniture ,using lighter coloured rugs, hanging curtains outside the window to make them appear larger are just a few things you can do.
Solid or liquid objects, coloured gases.
Fluorescein stain causes the cornea to appear green with lit with a Woods lamp.
They are in the three GREEN coloured Clucken nests. if you wave your cursor (little arrow/mouse) over the GREEN coloured nest a Clucken will appear you click on it and then you receive it! Hope this helped.
i believe petrol appear colored when present on wet surfaces because of its chemical composition. given that each petrol sample contain various bonds and bond angles, the presence of petrol on water (since petrol is insoluable in water), causes the light being reflected from the petrol appear in rainbow colours (ROYGBIV) since each colour has a different wave lenght
light refracting
Red cheeses are coloured by annato. Other cheeses are usually just natural colours.