Sampling errors occur when numerical parameters of an entire population are derived from a sample of the entire population. Since the whole population is not included in the sample, the parameters derived from the sample differ from those of the actual population.
First, what is a nebula?
A nebula is a cloud of dust or different elements (remember, the Space is to a big extent empty)
A planetary Nebula is a kind of nebula that is specifically formed with ionized gas that was released and surrounds a red giant star.
Answer:
73.05%
Explanation:
From 2000 to 2013, these four main processes removed approximately 41.82 Gt O2 from the atmosphere per year. Up to 73.05% of this O2 was removed by fossil fuel combustion (30.55 Gt),
Europe was hit the hardest by the plague.
Hope this helped!!