Whenever dusting a fingerprint with the fingerprint powder, it must be kept in mind that the color of the powder must contrast the color of the surface. When a fingerprint is discovered on the dark surface, then the fingerprint powder used must be of gray color, so that the print is easily visible when developed. The light color of gray will help the ridges of the print to stand out over the dark surface.
Hence, the correct answer is 'gray.'
The answer is B I believe.
Answer:
these are called Metalloids. They touch in between the metals and non-metals
Explanation:
Ovulation is the stage in which the eggs are being release from the ovaries. The follicles then rupture releasing the secondary oocytes. The luteal phase follows in which the egg is now ready to be fertilize by the sperm. If no fertilization happens, the uterine lining or endometrium which is the site of lh and fsh will shed thus menstruation happens.
<h2>Cyanobacteria </h2>
Explanation:
Simple cyanobacteria (single-celled organisms that can produce oxygen through photosynthesis) played a key role in providing Earth’s atmosphere and oceans with oxygen
Cyanobacteria or the blue green algae are the only bacteria that contain chlorophyll A, a chemical required for oxygenic photosynthesis, the process which uses carbon dioxide, water and sunlight to produce oxygen and glucose (sugars) for energy
In this process chlorophyll A helps in capturing the energy from sunlight
In addition to chlorophyll A, blue-green algae also contain the pigments phycoerythrin and phycocyanin, which give the bacteria their bluish tint
All the above characteristics of cyanobacteria can be used as a source of renewable energy by converting sunlight into electricity