The eons that make up 90% of Earth's history are the Precambrian eons, which consists of Hadean, Archean, and Proterozoic eons.
Velocity is how fast the river is moving, the Volume is how much is in the river!
It is called a sister chromatid, not a polar body.
During cellular respiration, the products produced are CO2 and H2O. This is from the addition of oxygen to the glucose or carbon components. Cellular respiration is the opposite of photosynthesis which on the other hand uses <span>CO2 and H2O to produce O2 and energy</span>
The correct answer for both blanks is "Sodium".
Sodium ions are necessary in small quantities for some sorts of flora, but sodium as a nutrient is extra usually wanted in large quantities by using animals, due to their use of it for era of nerve impulses and for upkeep of electrolyte balance and fluid stability. In animals, sodium ions are vital for the aforementioned capabilities and for coronary heart hobby and sure metabolic functions.
