contestada

A spaceship is designed to support animal life for a multiyear voyage to the outer planets of the solar system. Plants will be grown to provide oxygen and to recycle carbon dioxide. Since the spaceship will be too far from the sun for photosynthesis, an artificial light source will be needed.

13) What wavelengths of light should be used to maximize plant growth with a minimum of energy expenditure?
A) full-spectrum white light
B) green light
C) a mixture of blue and red light
D) UV light

Respuesta :

marissalynn
UV light. we even use UV lights for plants today in this time.

Answer:

C) a mixture of blue and red light

Explanation:

A grow light is an artificial source of light which is used to stimulate growth of plant by providing electric light appropriate for photosynthesis. These lights are used when there is no natural light available like the given situation in the question.

A mixture of Red and Blue light can be used to stimulate growth and regulate it. Red light stimulates growth while blue light regulates it. It is very cost effective solution.

Thus, option C is correct.

Otras preguntas