Earth is composed of four main layers, starting with an inner core at the planet's center, enveloped by the outer core, mantle, and crust. The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius.
source: nasa
False... There are four types of production factors.
Answer:
True
In a free market, competition determines price, and so companies will compete with one another to offer the lowest prices.
Pressure increases as we move to the center
Answer:
10,15,20,25
Explanation:
union mean the combination of all
