oten
Alcohol lamp
There is no conclusion to be drawn from 'laboratory apparatus'
sun is the primary source of heat and light......
A Bunsen burner is commonly used to heat things in a science laboratory. It produces a single open flame and can be adjusted in temperature by controlling the gas flow.
The sun is the source of heat and light for plant-life.
We're modestly familiar with the source of heat and light. And we know that heat and light both exist and are real. Cold and darkness do not exist. They merely describe the lack of heat and light, respectively.
The main source of light is the sun
the sun?
A light source is a form of energy produced by heat.
Yes, the sun is the origin of heat and light in our biosphere.
both
An iron lamp in the laboratory is used to provide a source of heat for various experiments. It can be used to heat substances in glassware or test tubes to facilitate chemical reactions, drying processes, or other laboratory procedures that require controlled heat application.