What process removes carbon dioxide from the atmosphere?

Photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.

What organisms would have needed to be present to remove carbon dioxide from the early atmosphere?

Photosynthesis by primitive plants and algae caused the removal of carbon dioxide from the air and the release of oxygen.

Why have atmospheric CO2 concentrations fluctuated over the past 400 000 years?

The levels remained below 300 ppm for more than 400,000 years. But in the last century, the burning of fossil fuels has rapidly driven atmospheric CO2 levels to new heights, overriding the natural cycle. As a result, there was a brief drop below 400 ppm this past summer.

Which can remove carbon dioxide from the atmosphere quizlet?

It remains constant because carbon cycles through the atmosphere, hydrosphere, biosphere, and geosphere. Which processes remove carbon dioxide from the air or water: combustion of coal or oil, photosynthesis, weathering of limestone, decomposition of plants and animals.

Why has carbon dioxide decreased in the atmosphere?

Carbon dioxide levels decreased because of processes that included: dissolving in the oceans. use by plants for photosynthesis. formation of fossil fuels as plants died and their carbon compounds became locked up underground.

How did Earth’s atmosphere develop?

When Earth formed 4.6 billion years ago from a hot mix of gases and solids, it had almost no atmosphere. The surface was molten. As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. After about half a billion years, Earth’s surface cooled and solidified enough for water to collect on it.

How has Earth’s climate changed over the past 400000 years?

Over the last 400,000 years the Earth’s climate has been unstable, with very significant temperature changes, going from a warm climate to an ice age in as rapidly as a few decades. These rapid changes suggest that climate may be quite sensitive to internal or external climate forcings and feedbacks.