The four mechanisms are as follows:
1) Orographic lifting: Air is forced to rise over a mountainous barrier
<span>
2) Frontal wedging: Warmer, less dense air is forced over cooler, denser air along a front
</span>
<span>3) Convergence: Pileup of horizontal air flow resulting in an upward flow
</span>
<span>4) Localized convective lifting: Unequal surface heating causes localized pockets of air to rise because of their buoyancy. </span><span />
A small amount of nitrogen is fixed by lightning, but most of the nitrogen harvested from the atmosphere is removed by nitrogen-fixing bacteria and cyanobacteria (formerly called blue-green algae). The nitrogen cycle transforms diatomic nitrogen gas into ammonium, nitrate, and nitrite compounds.
Answer is : b
Bilateral symmetry
Answer:
The follicular phase
Explanation:
In the follicular phase the level of estrogen hormone increases and the egg prepares itself for release. This phase occur between the first day of period and the ovulation. When the primary follicle matures and form secondary follicle, second meiotic division starts and lead to the formation of Graafian follicle which contains a secondary oocytes. Seconday oocytes consists of a diploid DNA and is not released until the second division is not complete.
Active transport uses energy but diffusion and facilitated diffusion doesn’t that why they differ from each other
hopefully that helps :)
