PHYS203 EXAM 2 NJIT-Questions 2025/2026 with 100% Correct Solutions

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PHYS203 EXAM 2 NJIT-Questions 2025/2026 with 100% Correct Solutions

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2025/2026

Institution Physics 203

Course Physics 203

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PHYS203 EXAM 2 NJIT-Questions 2025/2026 with 100% Correct Solutions

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PHYS203 EXAM 2 NJIT-Questions 2025/2026 with
100% Correct Solutions
Molten rock below earth's surface is...

Magma

Molten rock on earth's surface is...

Lava

The violence of volcanic eruptions is mainly controlled by...

The viscosity of the magma

High viscosity of magma

More violent eruptions (Mount St. Helens)

Less viscosity of magma

Less violent eruptions (Hawaii over a hot spot)

Composition and temperature control...

Viscosity

Lower temperature gives...

Higher silica (SiO2) content gives...

Higher viscosity

Basaltic lava has low viscosity due to having...

Less than 53% silica and magma temperature of 1100-1250 Celsius

, Rhyolitic lava has high viscosity due to having...

More than 68% of silica and magma temperature of 700-850 Celsius

Volcanic gases, such as CO2, escape more...

Easily from low viscosity magma

Majority of active volcanoes are located at...

Convergent plate boundaries

A shield volcano is...

Gentle slopes that are formed by longer distance of low viscosity lava flow

A strato volcano is...

Cone shaped with steep slopes that are formed by shorter distance of high viscosity lava flow

Volcanic debris carried by prevailing winds (tephra and gasses) and flowing on the ground

(lahar) affect...

Areas hundreds of kilometers away from volcanic eruptions.

A large crater that forms when a volcano collapses into a shallow empty magma chamber

below the volcano is a...

Caldera

The tallest mountain peaks are all in the...

Himalayas

The continental crust is thickest under...

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Uploaded on: October 21, 2025
Number of pages: 12
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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