The necessary tool to actually see is the eye, which functions as a sensory organ that detects light and allows us to perceive our surroundings. Additionally, light itself is essential for vision, as it illuminates objects, making them visible to the eye. Without either of these elements, the act of seeing would not be possible.
tool
microscope
An ophthalmoscope is a tool used by eye doctors to see the interior structures of the eye, including the retina, optic nerve, and blood vessels. It allows them to detect conditions such as diabetic retinopathy, macular degeneration, and glaucoma.
The light we see from the moon is actually sunlight that is reflected off the lunar surface. The moon does not produce its own light.
No. A rainbow is really a circle. You can only see part of it when you're on land, but if you happen to see one below you while you're in an airplane, you can often see the full circle.
An electron microscope is necessary to actually see a virus.
Microscope.
a sphygomanometer is actually a tool used for measuring blood pressure in your arteries. the "instrument" refers to a tool, but i do see where you got that.
All chisels, saws and awls are usually very sharp.
tool
Validity is the extent to which a measurement tool actually measures what we wish to measure.
tool
The correct spelling of necessary is necessary. Very simple. ( Actually it's in the question.)
The Target Spruce Tool Storage Shed includes all necessary hardware to assemble and secure the unit.
A cutting tool is actually not necessary. One can twist the spur and the hard outer "shell" will come off easily. The blood vessels inside are not damaged and a smaller spur will be left.
He considered the pen as the only tool necessary to liberate the Philippines from Spain. He considered it mightier than the sword (revolution).
Absolutely