The increase in atmospheric carbon dioxide 3.5 billion years ago would have likely been contributed to by
A. early cells beginning the process of photosynthesis and producing sugars.
B. early cells using hydrogen sulfide in the formation of biomolecules.
C. increasing colonies of cyanobacteria undergoing photosynthesis.
D. early cells undergoing anaerobic lactic acid fermentation.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.