Sulfur compounds in the atmosphere are equally derived from natural sources and from human activity. sulfur compounds in the atmosphere are equally derived from natural sources and from human activity.
a. true
b. false

The answer is TRUE. Example of natural processes that spew sulfur in the atmosphere is volcanic eruptions. One of the main gases released into the atmosphere is Sulphur dioxide. Human activity also, such as the burning of fossil fuels, also release sulfur dioxide into the atmosphere.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek