SAN DIEGO CITY COLLEGE Geology 104, Earth Science, Fall 2018 Semester CRN: 88702
ID: 153233 • Letter: S
Question
SAN DIEGO CITY COLLEGE Geology 104, Earth Science, Fall 2018 Semester CRN: 88702 Instructor:Anna Evashko Ofce Hours: MW 9:00 a.m.-9:30 a.m. Telephone: 619-885-1249 Email Take Home Quiz #2 Student Name: ructions: All quizzes are open book/open notes. Each quiz is worth 10% ofyour grade. Complete this quiz and turn it in at the beginning of our next class meeting. Inst Section 1. True/False. Read the statement and indicate whether the statement is true or false by placing a "T if true and an "F" if false next to the statement in the space provided (T or F) 1. The volcanic activity found along the edges of the Pacific plate is 2. The Hawaiian Islands were formed by the subduction of the Pacific 3 Ash and lapilli are different sized pyroclastic material. 4. The eruptions of the stratovolcanoes in the Cascade Rage are referred to as the "Pacific Rim of Fire." Plate beneath the North America Plate explosive due to their viscous lava. 5. Repeated eruptions of relatively fluid lava from fissures can cause an 6. 7. 8. area to be covered by flood basalts. Shield volcanoes have very steep slopes. Pahoehoe lava appears smooth and ropy as it cools and forms rock. Basalt is the most common magma crupted along occanic rift systems. 9. A volcanic bomb is composed of dnanitie 10. The three types of volcanic cones are shield, composite, and fire. Page I of 5Explanation / Answer
1.The volcanic activity found along the edges of the pacific plate is reffered to as the pacific ring of fire
ANSWER : TRUE
2.The hawaiian island were formed by the subduction of the pacific plate beaneth the north american plate .
ANSWER : FALSE
EXPLANATION :actually hawaiian island form due to hotspot activity
3.Ash and lapilli are different types of pyroclatic materials
ANSWER: TRUE
EXPLANATION: the materials which are ejected during the volcanic eruption are known as the pyroclastic materials . ash and lapilli are pyroclastic materials
4.The eruption of the stratovolcanoes in the cascade rage are explosive due to their viscus lava
ANSWER : TURE
5.Repeatederuption of relatively fluid lava from fissures can cause an area to be covered by flood basalt
ANSWER : TRUE
6.Sield volcanoes have very steep slopes
ANSWER : FASE .
7.(Sield volcanoes have very gentle slopes )
8.Pahoehoe lava appears smooth and ropy as it ools and orms rock
ANSWER: TRUE
9.Basalt is the most common magma erupted in the oceanic rift system .
ANSWER : TRUE
10.Volcanic bomb is compose ith dynamite
ANSWER : FALSE
11.The three types of volcanic cones are shield , composite and fire
ANSWER : FALSE
EXPLANATION: The three types of volcanic cones are shield , composite and dome .
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