The first notable volcanic activity since 1992-93, when there was dome growth and secondary phreatic explosions in the aftermath of the major 1991 eruption, is a phreatic explosion from the summit crater lake at Pinatubo in November 2021.

<h3>What evidence exists to suggest that the 1991 eruption of Mount Pinatubo rendered lahar unsafe?</h3>

Lahars at Pinatubo since 1991 In the years that followed the devastating eruption in 1991, they deposited more than 0.7 cubic miles (3 cubic kilometers; hundreds of square miles of land were submerged by the debris, which was the equivalent of 300 million dump truck loads, in the lowlands surrounding the volcano.

<h3>How were they aware of the impending eruption of Mount Pinatubo?</h3>

Seismic data and an increase in sulfur dioxide released from the volcano by May 1991 suggested to scientists that the volcano's magma chambers were being filled with new magma. The rapidly expanding lava dome on Pinatubo hinted at a forthcoming large-scale eruption.

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6 0

1 year ago

Which location represents December 21st?

xz_007 [3.2K]

Answer:

equator sun

Explanation:

the winter solstice explained. at 6:12.a.m. EST on Friday (Dec 21) , the sun will reach a point where it will appear to shine farthest

to the South of the equator, over the tropic of Capricorn , Thus markingthe moment of winter solstice -the beginning of the winter.

5 0

2 years ago

What involves the introduction into the ocean by humans of substances or energy that changes the quality of the water or affects

never [62]

Marine Pollution involves the introduction into the ocean by humans of substances or energy that changes the quality of the water or affects the physical, chemical, or biological environment.

Chemicals and debris, the majority of which originates on land and is dumped or blown into the water, make up marine pollution. The ecology, the health of all living things, and global economic institutions are all harmed by this pollution.

In the modern world, marine pollution is becoming a bigger issue. Chemicals and rubbish are the two main sources of pollution in our ocean.

Chemical contamination, often known as nutrient pollution, is problematic for the environment, human health, and the economy. This kind of pollution happens when human activities, particularly the application of fertiliser on farms, cause chemical runoff into waterways that eventually empty into the ocean.

Learn more about marine pollution here

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6 0

2 years ago

How is electricity helping crocodiles in South Florida

NikAS [45]

You have cooling canals.

6 0

3 years ago