Chemical Processes in Earth and Life Systems

Chemical Processes in Earth and Life Systems

Assessment

Flashcard

Science

Hard

NGSS
HS-LS2-5, HS-ESS2-7, HS-LS1-5

+6

Standards-aligned

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15 questions

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1.

FLASHCARD QUESTION

Front

What biological process is responsible for introducing free oxygen to Earth’s atmosphere?

Back

Photosynthesis is the biological process that introduced free oxygen to Earth’s atmosphere.

2.

FLASHCARD QUESTION

Front

Why is it believed that life on Earth evolved in the oceans before appearing on land?

Back

Ocean water offered protection against harmful radiation until an atmosphere could form.

3.

FLASHCARD QUESTION

Front

What explains the buildup of free oxygen in Earth's atmosphere around two billion years ago?

Back

Photosynthetic organisms became more common on Earth.

Tags

NGSS.HS-LS2-5

4.

FLASHCARD QUESTION

Front

What positive impact did the weathering of rocks have on Earth's lifeforms?

Back

The weathering of rocks increased, producing soil and minerals that better supported life.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

5.

FLASHCARD QUESTION

Front

How does the development of the Earth's surface relate to the development of life on Earth?

Back

The changing surface of the Earth determined what kinds of organisms could exist.

Tags

NGSS.HS-ESS2-7

6.

FLASHCARD QUESTION

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

7.

FLASHCARD QUESTION

Front

What is the significance of unicellular life in Earth's history?

Back

Unicellular life was crucial for the oxygenation of the atmosphere through photosynthesis.

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