General Science Questions

Lens is made up of Flint glass.

Pulse crops are one of the most sustainable crops a farmer can grow. Pulses are a type of leguminous crop that are harvested solely for the dry seed. Dried beans, lentils and peas are the most commonly known pulses.

Pulses are good source of proteins we all need for living.

Fossil fuels energy source generates the least greenhouse gases. Of them, i.e, oil, natural gas and coal, natural gas source generates the least greenhouse gases.

The head mirror used by ENT doctors is concave.

Haemoglobin is a protein what carries oxygen in the blood and contains iron metal in it.

Visible Horizon is the circle of contract, with the earth, of the cone of visual rays passing through the point of observation.

Forest habitat and soil are conserved through selective logging, in which only some trees in an area of forest are cut.

The nutrients that provide energy are carbohydrates, proteins and vitamins. The other three nutrients--vitamins, minerals, and water do not provide energy.