HORTICULTURE

Detailed explanation-1: -A human hair is approximately 80, 000-100, 000 nanometers wide.

Detailed explanation-2: -The smallest thing that we can see with a ‘light’ microscope is about 500 nanometers. A nanometer is one-billionth (that’s 1, 000, 000, 000th) of a meter.

Detailed explanation-3: -a DNA molecule is  2.5 nm in width. a 2 meter person is 6 feet 6 inches tall or 2 billion nanometers.

Detailed explanation-4: -The so-called nanoscale deals with dimensions between approximately 1 and 100 nanometers. A nanometer is an extremely small unit of length-a billionth (10-9) of a meter. Just how small is a nanometer (nm)? A single human hair is about 80, 000 to 100, 000 nm wide.

Detailed explanation-5: -A nanometre (nm) is 10⁻⁹ metres, which is one-thousandth of a micrometre, or one-billionth of a metre. This is the scale at which we measure atoms and the molecules they make.