Answer:
8.
Explanation:
Oxygen is one of the most important element present in the environment as well as inside the living organism. The atomic number of the oxygen is eight.
The proton number of an element is equal to the atomic number of that element. The number of proton of an oxygen atom is eight. The number of electron can be lose or gain in the chemical reaction.
Thus, the correct answer is option (c).
Answer and Explanation:
Most young roots have two main regions. An outer cortex and a central cylinder containing the vascular bundles.
The endodermis also referred to as starch sheath. Its cells have a casparian strip which is made up of an impervious waxy deposit on the radial and cross walls. It controls entry of water and dissolved salts into the vascular bundle.
Divergent boundaries are typified in the oceanic lithosphere by the rifts of the oceanic ridge system, including the Mid-Atlantic Ridge and the East Pacific Rise, and in the continental lithosphere by rift valleys such as the famous East African Great Rift Valley. I don't know your answer choices but I hope this helps!!!!!!
Nitrates are used by plants to make amino acids and proteins. Most of the phosphorus cycle takes place at ground level. Phosphate is released by the slow breakdown of rocks. What two main biological processes are responsible for the cycling of oxygen?
Answer:
the difference is that permanent gases have larger residence times and Variable gases have shorter residence times
