Answer:
we need tropical rain forests because they produce oxygen and clean the atmosphere to help us breathe. They also provide us with medicinal plants and may be the source to cure deadly diseases.
Answer:
False
Explanation:
Chain migration is the social process by which migrants from a particular town follow others from that town to a particular destination, it assures that the mover is part of an established migrant flow from a common origin to a prepared destination,the prepared destination may be in another country or in a new location within the same country
Step migration involves the place transition from, for example, rural to central city residence through a series of less extreme locational changes, from farm to small town to suburb, and finally to the major central city itself
It's to Capture Saudi Arabia's Oil Wells.
In the development of a terrestrial planet, the stage of differentiation when dense material settled to the core and less dense to the outer parts.
The stage of planetary differentiation<span> includes separating out different constituents of a </span>planetary<span> body and development into compositionally distinct layers.
</span><span>It is the organization of the Earth into layers.</span>
