The correct answer is option-D
The fossil record shows species suddenly appearing and disappearing. When one species goes extinct, another one usually takes its place. It provides with the snapshots of the past. It shows the changes over the past four billion years. It maybe unclear at parts but it does provide evidence that life is old and over time has changed. By studying fossil record the relation of different plants and animals can be figured out and it also tells us how old life is on earth. We can learn about extinct species and find out the reasons as well behind there extinction.
Dinosaur because they existed back then
Answer:
<em>Differently in a local area</em>
Explanation:
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Answer:A
Explanation: The answer is A
Because it Increases the security and accuracy of stored and dispensed medication.
We inhale air that is comprised of roughly 78 percent nitrogen and 21 percent oxygen, as well as a trace amount of other gases.
When we exhale, the components are the same, they just come out in different amounts. Exhaled air is made up of about 78 percent nitrogen, 18 percent oxygen, and four percent carbon dioxide, excluding those trace gases.
TL;DR
Inhaled: 78% Nitrogen, 21% Oxygen, 1% Other Gases
Exhaled: 78% Nitrogen, 18% Oxygen 4% Carbon Dioxide
