Answer:
A. unusual distribution of fossils in the Southern Hemisphere
Explanation:
The majority of species require <u>oxygen</u> to survive
Answer:
Explanation: Europe and Asia have many things in common, the most obvious being the population distribution. These regions both have very urban and dense populations, although Europe is somewhat more urban. The populations live where they have access to resources, regardless of what the resource is. This connects to climate because the populations in each reason often choose to live in extreme temperatures, examples include Dubai, where temperatures regurlarly rise above 100, and Oslo, where it is not uncommon for the temperature to drop below 0.
3 looks like the best option
Yes topaz is natural and formed and earth.