The two main groups of Archaebacteria are methanogens, halophiles, and thermophiles.
A; Carbon’s atomic number is 6, atomic number indicates the amount of protons in an atom. The number of protons (positively charged particles) is equal to the number of electrons (negatively charged particles). Because atoms have a neutral charge. The average atomic mass of carbon is 12.011; this is the amount of protons plus the amount of neutrons because electrons are so small they weigh almost nothing compared to protons and neutrons. To find the number of neutrons you subtract the number of protons from the average atomic mass. 12.011-6=6.011 (which can just be rounded to 6). So a carbon atom has 6 neutrons. Answer A is correct because it correctly states that an atom of carbon has 6 protons 6 neutrons and 6 electrons
Answer:
Carbon can become "tied up" in the ocean for hundreds and sometimes millions of years because dissolved carbon dioxide in water can sink with cold water to the bottom where it is moved slowly by deep ocean currents for hundreds of years before it is released to the atmosphere. This can lead to ocean acidification (the ongoing decrease (more acidic) in the pH of the Earth's oceans, caused by the uptake of carbon dioxide from the atmosphere)
Less growth hormones and a lower metabolic rate
