They have increased the levels of greenhouse gases.
Yes, Mars' atmosphere does change from season to season. During the planet's winter, carbon dioxide freezes out of the atmosphere, causing it to thin. In summer, this carbon dioxide sublimes back into the atmosphere, thickening it again.
Humans have walked the earth for the last 50 - 200K years. There have been earthquakes since the formation of the planet ~4.5 billions years ago - long before humans were around.
Archaebacteria
If scientists discovered a new planet with an atmosphere similar to Earth's three billion years ago, characterized by methane and ammonia, it could indicate the potential for early microbial life or prebiotic conditions. Such an atmosphere might suggest that the planet is in a similar evolutionary stage to early Earth, providing valuable insights into the origins of life. Additionally, studying this planet could help researchers understand how atmospheres evolve over time and the conditions necessary for life to emerge elsewhere in the universe.
Earth's exact age is indefinite but it is millions of years old. Humans discovered it when they had their first concious thought.
Yes, Mars' atmosphere does change from season to season. During the planet's winter, carbon dioxide freezes out of the atmosphere, causing it to thin. In summer, this carbon dioxide sublimes back into the atmosphere, thickening it again.
Pretty high if humans keep on polluting the earth and causing the atmosphere to thin out, allowing dangerous radiation into out planet.
Modern humans have been around for 200,000 years.
The atmosphere of the planet is not noticeably different now to how it was 4000 years ago.
The Earth's atmosphere first developed around 4.5 billion years ago when the planet formed. Oceans began to form around 4 billion years ago as water vapor in the atmosphere condensed and fell as rain, filling the low-lying areas of the planet.
Humans have walked the earth for the last 50 - 200K years. There have been earthquakes since the formation of the planet ~4.5 billions years ago - long before humans were around.
They have increased the levels of the greenhouse gases.(Apex)
Humans respond to the environment by building shelters for protection and planting crops for food.
They have increased the levels of the greenhouse gases.(Apex)
Humans have significantly altered the Earth's atmosphere in the past 200 years by increasing the concentration of greenhouse gases, primarily carbon dioxide, through activities like burning fossil fuels and deforestation. This has led to global warming and climate change, impacting weather patterns, sea levels, and ecosystems worldwide.
It is impossible to tell what humans will look like in a billion years, if any humans are even alive then. We could change drastically, or not at all.
No, but there is fossil evidence to suggest that there was very simple forms of life (bacteria) on Mars many years ago when the planet still had an atmosphere and unfrozen water.