As shown in figure a5-3, the mt. polley map area is almost entirely underlain by quesnel terrane rocks, although small parts of two other terranes also are represented on the map—the cache creek terrane in the southwest and the kootenay terrane in the northeast. most of the quesnel terrane in this area is volcanic and sedimentary in origin.
what type of rocks make up the cache creek terrane in this area, and how old are they? (3 points)
what type of rocks make up the kootenay terrane in this area, and how old are they? (3 points)
when the quesnel terrane was accreted onto north america in the early jurassic (at around 185 ma), it already included some intrusive igneous rocks, but other intrusions appeared later. identify the post-accretion intrusive(s) and indicate their age(s). (3 points)
some sedimentary and volcanic rocks and some still-unconsolidated sediments were deposited in this region after the terrane accretion events. identify these units, and indicate their ages and the types of materials. (6 points)

Which of the following areas has the highest population density?

How does central place theory explain patterns in the size and distribution of cities?

Study guide for unit 2 ~ lesson 3 ,4, & 5 test, thursday, january 24th lesson 3 vocabulary erosion - deposition - landform- weathering- short answers 1. how do volcanic islands form? 2.why is deposition likely to occur outside a river bend? 3. in what conditions does soil form fastest? 4. which 2 earth’s systems interact to form a coral island? 5. a beach growing in size is most likely the result of 6. which type of islands are formed when a chunk of land breaks off from a larger landmass? long answers explain how plants can grow in small cracks of rock that do not appear to contain soil. lesson 4 vocabulary pollution - toxic - short answers 1. most farmers pollute soil by purposefully adding 2. what is the benefit of contour plowing? . 3. using nuclear power to produce electricity can cause water pollution by 4. why do scientists predict humans will run out of fossil fuels someday? 5.farmer spray crops with fertilizer and weed killer to the crops grow. how might this affect the hydrosphere? list two different ways you use fossil fuels. 1- 2- what are two other energy sources scientists and engineers are researching? 1- 2- lesson 5 vocabulary decompose- recycling - short answers 1. which of earth’s systems do you interact with when you wash your hands? 2. which of earth’s systems is polluted by exhaust gases from buses pollute? 3. why is it important to dispose of electronic devices properly? 4. where do people interact with all four of earth’s systems?