Question

question 1 (2 points)
which statement best describes the relationship between earthquakes and tectonic plates?
a earthquakes only happen near volcanoes
b earthquakes happen when plates suddenly release built - up stress
c earthquakes are caused by magma reaching the surface
d earthquakes stop once plates lock together

question 2 (2 points)
why might people living near some volcanoes have more time to evacuate than people near others?
a some volcanoes erupt only at night
b some volcanoes are located on islands
c some volcanoes release lava that moves slowly
d some volcanoes do not release magma

Explanation:

For Question 1:

• Option a is incorrect because earthquakes occur at all tectonic plate boundaries, not just near volcanoes.
• Option c is incorrect because magma reaching the surface causes volcanic eruptions, not earthquakes.
• Option d is incorrect because when plates lock together, stress builds up, which can lead to future earthquakes, not stop them.
• Option b is correct: Tectonic plates moving past, away from, or towards each other build up stress; when this stress is suddenly released, an earthquake occurs.

For Question 2:

• Option a is incorrect because volcanoes can erupt at any time, and eruption time does not affect evacuation window length.
• Option b is incorrect because a volcano's location on an island does not inherently give more evacuation time.
• Option c is correct: If a volcano releases slow-moving lava, people have more time to evacuate before the lava reaches populated areas.

Answer:

Question 1: b. Earthquakes happen when plates suddenly release built-up stress
Question 2: c. Some volcanoes release lava that moves slowly