Which material is a conductor

a. plastic
b. silver
c. glass
d. wood

Autotrophs a.consume their food to get energy b.may use photosynthesis to gain energy c.are also called consumers d.cannot use solar energy

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?