In the northern hemisphere, atmospheric levels of carbon dioxide gas are maximum during late winters and spring months. The increased carbon dioxide levels of atmosphere are due to lowest vegetative uptake of the gas by plants for photosynthesis.
On the other hand, early autumn months in the hemisphere exhibit low carbon dioxide levels. This is due to the increased photosynthetic activity of native plants during the month of summers which in turn reduces the concentration of carbon dioxide in air.
For normal goods, the income effect and the substitution effect both work in the same direction; a decrease in the relative price of the good will increase quantity demanded both because the good is now cheaper than substitute goods, and because the lower price means that consumers have a greater total purchasing power.
The phylum Glomeromycota represents a group of fungi where all representatives of this division reproduce asexually forming Glomerospores as reproductive structures. These fungi are characterized by being a species that introduces genetic diversity in the population during reproduction, creating a diploid zygote that results from the union of the nuclei of two mutually compatible cells.