Organisms need nutrients in order to:
a. utilize hydrogen and oxygen.
b. carry out essential life functions.
c. recycle chemical compounds.
d. carry out nitrogen fixation.

Correct answer choice is:

B) Carry out essential life functions.

Explanation:

They are essential to the lives of people, plants, animals, and all other organisms. Nutrients help cut down food to give organisms potential. The most essential nutrients they require are carbon, hydrogen, and oxygen. Other nutrients required by plants are nitrogen, phosphorous, potassium, calcium, magnesium, and sulfur.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.