Answer:
Jobs focused on providing services are part of the tertiary economic sector.
Explanation:
There are four economic sectors based on the activities that are performed by the people. The primary economic sector, secondary economic sector, tertiary economic sector, and quaternary economic sector are the four economic sectors, all of which have their own unique characterisitcs. The tertiary economic sector is characterized by providing services.
ng serIn this economic sector, the jobs focus on providing services for the customers, and this is a sector that tends to be dominant in the countries that are well developed or the countries that have no other choices than to get engaged in it in order to have income. The well-developed countries are dominated by this sector because in the primary and secondary ones they don't need much labor force because of the advancements in technology, plus this sector is highly profitable. The countries that depend almost exclusively on tourism for income, like the big portion of the island nations at and around the tropics, have almost all of their labor force engaged in tourismm thus providing services for the tourist.
The correct answer is b. Laurasia and Gondwanaland!
Gondwanaland (also called just Gondwana) is today's South America, Antrarctica Africa and Australia, and additionally parts of Asia, such as India
Laurasia is today's North America, Europe and parts of Asia.
Answer:
The crust size remains constant because the older crust is melted at subduction zones.
Explanation:
The crust is constnatly created on Earth, but the crust is constantly getting destroyed as well. This situation leads to the total size of the crust being roughly at the same level, or rather constant, as one side a new one emerges, while at the same time, on the other side it gets destroyed.
The vast majority of the new crust is formed where there are divergent plate boundaries. Here, a gap opens up between the plates that move away and magma is constantly rising to the surface and creates new crust. When it comes to the destruction of crust, it occurs at subduction zones. Here, one plate moves below another plate, and as it does it reaches the upper mantle where it gets melted and recycled because of the high temperatures and pressure.
Yes because rivers are important for trade and even things like fresh water and transport.
