Penis
To see if Human life can live in it because the world is becoming over the population limit.
Sometimes they do, sometimes they don't.
I don't know, but scientist know.
so they know what's going on in the world
This question is unclear because I do not know what collares are.
Antarctica has no native population. Scientists from all over the world do research there. Those scientists represent a large number of religions.
Yeah because scientists from all around the world had expreinced it
Approximately one-third of the world's population lives in countries that suffer from what scientists term "water stress," where water resources are scarce or polluted. This puts a significant portion of the global population at risk of facing water shortages and related challenges.
Dugongs are tagged with tracking devices, this is done for that scientists can monitor their population and keep tract of the dugongs
I don't know about the entire world but some scientists believe that we are.
There are accurate measurements of temperature every day, all round the world. Scientists can see that temperatures are rising. They can measure ice melting, and sea levels rising. This is how they know.
To know about scientists life