Answer:
Photosynthetic organisms was the reason of these atmospheric changes.
Explanation:
The plant which is discovered by the scientists that is apparently devoid of life but has ice caps located at the poles which reveals that planet's atmospheric O₂ levels sharply increased about 1,000,000 years ago was due to evolution of photosynthetic organisms like cyanobacteria etc which went extinct and then O₂ levels dropped quickly 50,000 years ago. So photosynthetic organisms was the reason of these atmospheric changes.
Camels are located throughout tropical and subtropical dry zones.
Answer:
Roman Catholic Church
Explanation:
Christianity is by far the biggest religion in South America and is the dominant religion in all countries of the continent. The Roman Catholic Church, which is the most popular denomination in South America, represents that largest religious group in the continent.
The population of Romania is around 20 Million people.
The majority of the citizens of Romania are ethnic Romanians, speaking Romanian as their first language - but actually it's only around 70%.
Romania has a big Hungarian minority and a significant German speaking minority as well.
The significance of the yearly flooding of the Nile Valley is important because it replenishes nutrients in the soil and makes the land more fertile for plants to grow.
