Answer: Its presence is a good determinant of past hot climates. Its absence can also indicate cold climates.
Explanation:
18O and 16O are oxygen Isotopes, and are used in determining past climates. Heavier than the 16O with 10 neutrons and 8 protons, the 18O does not evaporate as easily and because of this, higher amounts are found in the tropics.
Together, they serve as good determinants of past climate by checking for their ratio in fossils.
Also the 18O isotopes are not present in polar regions as they precipitate before getting to higher altitudes. Cold areas, on the other hand, are high in 16O as they get trapped in glaciers. When climate changes in a location, the quantity of both of these oxygen isotopes also changes.
Answer:
Layers that are less dense, such as the crust, float on layers that are denser, such as the mantle. Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. This is partly why the continents are at a higher elevation than the ocean floor.
Explanation:
Answer:
Explanation:But first, what exactly are they tracking? Unlike searching on DuckDuckGo, when you search on Google, they keep your search history forever. That means they know every search you’ve ever done on Google. That alone is pretty scary, but it’s just the shallow end of the very deep pool of data
that they try to collect on people.
What most people don’t realize is that even if you don’t use any Google products directly, they’re still trying to discover as much as they can about you. Google trackers have been found on 75% of the top million websites. This means they're also trying to track most everywhere you go on the internet, trying to slurp up your browsing history!
Most people also don’t know that Google runs most of the ads you see across the internet and in apps – you know those ones that follow you around everywhere? Yup, that’s Google, too. They aren’t really a search company anymore – they’re a tracking company. They are tracking as much as they can for these annoying and intrusive ads, including recording every time you see them, where you saw them, if you clicked on them, etc.
I think the city near an ocean, which is a body of water, will have cooler temperatures than an inland city as when the wind blows, due to the cool sea water, it will have a cooling effect.
