What is a supercontinent? Identify the supercontinents of the Proterozoic. Discuss their history What will be an ideal response?


A supercontinent consists of at least two continents merged into one, and we usually refer to
a supercontinent as a one composed of all or most of Earth’s landmasses. Two
supercontinents existed in the Proterozoic: Rodinia assembled between 1.3 and 1.0 billion
years ago, and fragmented 750 million years ago. The continents reassembled 650 million
years ago into another supercontinent, Pannotia. This began fragmenting 550 million years
ago, near the end of the Proterozoic.

Environmental & Atmospheric Sciences

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The quaternary sector in the Intermontane has frequently been connected to ________ research

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

How many branches does the polar jet stream have under La Niña winter conditions?

A. 1 B. 2 C. 3 D. 4

Environmental & Atmospheric Sciences

Carbon monoxide tightly binds to ________

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

Inhaling PM 2.5 is most likely to cause ________

A) damage to alveoli in the lungs B) hallucinations C) brain damage D) depletion of the ozone layer

Environmental & Atmospheric Sciences