Answer
Above is a picture of Nebula..
a cloud of dust and gas in space
To avoid excess intestinal gas, increase fiber intake
gradually. Use Beano, which contains
enzymes to break down undigested carbohydrates before they can be fermented by
intestinal bacteria. Intestinal blockage, particularly in combination with low
fluid intake. Under normal conditions, human cells obtain a small proportion of
their energy needs by converting certain amino acids from proteins into
glucose.
Answer:
Option A, oxygen in the atmosphere
Explanation:
The highest level of oxygen reached during this phase of the geological cycle of earth. The oxygen level in Carboniferous period accounted for 35% as compared to 21% of oxygen in the atmosphere in present time.
Due to high oxygen content, the giant and wide varieties of terrestrial animal and plant species evolved. For example – size of insects and carwlies increased, plant became extremely giant, increase in number of tree ferns etc.