Answer:
There are two kingdoms of prokaryotes. These are the bacteria (or eubacteria ) and the archaebacteria (or the Archaea ).
Explanation:
Earth orbits the sun 100,000 times closer than the Oort Cloud, at an average of 92,955,807 miles (149,597,870 km) or 0.000015898 light years. The distance from Earth to the sun is called an astronomical unit, or AU, which is used to measure distances throughout the solar system.
Its a pheromone
<span>The existence of human pheromones is not more known; however, some scientists report that some chemicals affect the human body like pheromones. and this word first appeared in 1950s
</span>hope it helps
Answer:
The formula tells us that each mole of CaCO3 contains 3 moles of Oxygen. Then 3 moles of CaCO3 would contain 3 X 3 or 9 moles of Oxygen. I mole is define as avogadro’s number of units. Avogadro’s number is 6.02 X 10^23. so the answer is 3 X 3 X 6.02 X 10^23. = 5.42 X 10^24