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Science · Drill 86

Science practice 86

5 questions ~9 min recommended
⏱ 00:00
Score
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I appreciate your message, but I need to clarify the task. You've provided what appears to be a table or diagram with headers and labels (like "Total Loss (%)", "Starvation", "Site 1", "Site 2", etc.) and multiple-choice questions, but you haven't provided: 1. **The actual passage text** with underlined portions and standalone digit markers (like "1", "2", "3") that indicate where questions apply. 2. **Clear indication of which text should be underlined** for each question. The current input shows table/diagram content and Q1-Q5 options, but no passage narrative with embedded question markers. To properly render this as HTML with underlined phrases and subscript question numbers, I need: - The full reading passage as continuous or paragraph text - Standalone digits (1, 2, 3, 4, 5) placed right after the underlined phrases they correspond to - Or explicit guidance on what text should be underlined for Q1-Q5 Could you provide the complete passage text with the question markers embedded (as you described in the instructions), and I'll render it correctly?

PASSAGE I

A pluvial lake is an ancient lake with high water levels, generally associated with times of high precipitation. Lake Bonneville was a prehistoric pluvial lake that covered much of North America's Great Basin region during the last ice age (see Figure 1). Most of the territory it covered was in present-day Utah, though parts of the lake extended into present-day Idaho and Nevada. Formed about 32,000 years ago, it existed until about 16,800 years ago, when most of the contents of the lake were released through the Red Rock Pass in Idaho.

Figure 1

At more than 1,000 feet (305 m) deep and more than 19,691 square miles (50,999.5 km2) in area, Lake Bonneville was nearly as large as Lake Michigan and significantly deeper. Over time, increasing temperatures in North America caused the lake to begin drying up, leaving Great Salt Lake, Utah Lake, Sevier Lake, Rush Lake, and Little Salt Lake as remnants. While each of these lakes is considered a freshwater lake, the salinity levels are higher than normal. Figure 2 shows a cross-section of part of Utah Lake and its sediment and bedrock, with measurements taken at the cities of Genola and Provo and two test sites in between.

Figure 2

1. According to Figure 2, the lake clay deposit is thinnest at which of the following locations?

2. According to the passage, Lake Bonneville existed in its entirety for approximately how many years?

3. According to Figure 2, as the thickness of the lake clay increases from Genola to Site 2, the thickness of the bedrock beneath it:

4. According to Figure 2, which of the following graphs best represents the elevations, in meters above sea level, of the top of the lake clay layer at Test Sites 1 and 2?

5. Great Salt Lake is fed mainly by 3 tributary rivers that deposit large amounts of minerals into its waters. The lake is salty because it has no outflow for water other than evaporation, which is predominately mineralfree. If local temperatures were to decrease significantly, while freshwater rain were to increase significantly, what would be the likely resulting change in the salinity of Great Salt Lake?

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