During the early earth, when photosynthesis has not yet evolved, there were only negligible amounts of free oxygen in the atmosphere. It was said that the Earth's atmosphere had no free oxygen then. This is about 3.5 billion years ago.
Russia. Is is the border of Europe very close to Asia
The correct answer is - it leads to flooding and drought in different areas.
The El Nino occurrence on every 4 years has global effect on the climate, but by far the most affected is the western part of South America and also the Pacific island countries. It causes a lot of problems, flooding's caused by heavy precipitations, connected to that one of the biggest land slides on the planet, and there's always lots of casualties. In other parts is totally the opposite, it causes long drought and very high temperatures.
Texas is located in the SOUTH WEST of the United States. South West of Oklahoma, East of New Mexico and on the boarder of the country Mexico to the South.
Answer: Human activities contribute to climate change by causing changes in Earth's atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. ... The human impact on climate during this era greatly exceeds that due to known changes in natural processes, such as solar changes and volcanic eruptions.
Explanation: This should be correct.
