subject
Chemistry, 03.06.2021 01:00 pookie1971

How are Cyanobacteria related to the atmosphere? A. It is believed they were the first oxygen producing organisms
B. They are believed to produce carbon dioxide into the atmosphere
C. They fed off the abundant nitrogen in the atmosphere

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 23:30
Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.
Answers: 3
question
Chemistry, 23.06.2019 02:50
Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ
Answers: 2
question
Chemistry, 23.06.2019 05:00
How many atomic mass units are equal to 1.672×10−24 g of protons?
Answers: 3
question
Chemistry, 23.06.2019 10:30
Ethyl alcohol, also known as ethanol, has a density of 0.79 g/ml. what is the volume, in quarts, of 1.95 kg of this alcohol?
Answers: 2
You know the right answer?
How are Cyanobacteria related to the atmosphere? A. It is believed they were the first oxygen produ...
Questions
question
Mathematics, 24.04.2020 01:17
question
Biology, 24.04.2020 01:17
question
Mathematics, 24.04.2020 01:17
question
Mathematics, 24.04.2020 01:17
question
Mathematics, 24.04.2020 01:17
Questions on the website: 13722367