Answer:
<u>Instead of Helium and Hydrogen there are heavier elements in inner planets like Nitrogen and oxygen.</u>
Explanation:
- As the inner planets like Mercury, Venus and Mars and earth have a solid surface which is separated by the Sharpe atmosphere, and their gravity is too low to hold these light gases.
- Uranus is primarily composed of gases and ice of which 83% is hydrogen and 15% helium and rest are trace gases. As in the early composition of the atmosphere, the inner planets like the earth had a solid atmosphere composed of solid silicates elements like magnesium, iron, calcium, and potassium.
- As the earth has a highly unstable atmosphere only carbon, nitrogen and oxygen combined in lightning occur. And planet mercury has no atmosphere thus gravity is too low to hold any gas.
Volcanoes on Mars resemble Hawaiian Shield Volcanoes found on Earth, meaning that the answer is D.
The best example is their amazing system of roads. The Incas built roads across the length and width of their empire. To create routes through steep mountain ranges, they carved staircases and gouged tunnels out of rock. They also built suspension bridges over rivers.
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Answer:
Explanation:
following the end of the civil in 1949, Costa Rica abolished its army and redirected its budget to-ward healthcare and education. Ever since and up to this day, Costa Rica has achieved some of thehighest living standards and development indicators in Latin America. Furthermore, unlike mostother countries in the region, Costa Rica has not had dictatorships or armed conflicts since the abolishment of its army. In addition, soon after the abolishment of its army, the country started experiencing a notable economic growth divergence relative to the rest of the countries in the region. Thus, these institutional changes along with long-standing democratic history have been considered to be factors of paramount importance that have led to these developmental achieve-ments and democratic stability in the country up to this day.
Both Mexico and The united states are federal republics and and are divided into states also, the head of state is known as "President" and also has the same legislation.
