The answer is letter d. it has only 2 electrons in its first shell and 4 in the second shell. Basing from the electronic configuration of the carbon atom, the "s" orbital of carbon atom is completely filled leaving now the "p" orbitals partially filled. Thus in this case, carbon atom has four (4) valence electrons.
Answer:
Atp is Adenosine triphosphate an organic compound that provides energy to drive many processes in living cells. The energy is stored in the covalent bonds between phosphates.
Answer:
Nutrient cycle is a process of movement, reuse or recycling of nutrients in that particular environment. They are for both living and nonliving things, elements like carbon, oxygen are recycled through such cycles.
Nutrient cycle in an ecosystem involve:
- carbon cycle
- nitrogen cycle
- oxygen cycle
- phosphorus cycle
The answer is c because if you treat the sewage water than you that means that the water will be clean so it prevents diseases
One advantage would be fertility