Meteorology and Atmosphere

Front

What gas needed to be established within the Earth's atmosphere before the atmosphere was able to absorb and maintain heat?

Back

Carbon dioxide

Front

Which event followed a massive volcanic eruption and led to the cooling of global temperatures? Options: the release of carbon dioxide and methane gases, thunderstorms that developed near the eruption, the outflow of magma over Earth’s surface, the addition of ash particles into the atmosphere

Back

the addition of ash particles into the atmosphere

Front

Most of the molecular oxygen in the early atmosphere of Earth resulted from: lightning striking Earth, photosynthesis in primitive plants, volcanic eruptions, decaying primitive plants and animals

Back

photosynthesis in primitive plants

Front

Which of the following was primarily responsible for the development of life outside of the oceans? A decrease in atmospheric carbon dioxide, An increase in atmospheric oxygen, An increase in atmospheric nitrogen, A decrease in atmospheric hydrogen

Back

An increase in atmospheric oxygen

Front

Where is the majority of O3 found in the Earth's atmosphere?

Back

Stratosphere

Front

Most scientists believe Earth’s Early Archean atmosphere was formed primarily by gases released from: volcanic eruptions, stream erosion, chemical weathering, plant transpiration.

Back

volcanic eruptions

Front

The composition of Earth's atmosphere has changed over geologic time. Early cyanobacteria performed photosynthesis contributing which chemical to the early atmosphere?

Back

Oxygen

Front

Fossil evidence indicates that the earliest forms of life that appeared on Earth were most likely —

Back

bacteria

Front

About 2.0 billion years ago, complex organisms began to inhabit Earth. These complex organisms developed primarily because of —

Back

changes in atmosphere gases

Front

What layer of the atmosphere is labeled number 1?

Back

Troposphere