WHAT IS LIFE LL W/ LAUNCHPAD
4th Edition
ISBN: 9781319231859
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 2, Problem 4MC
Summary Introduction
Introduction:
The hydrogen bonding in water gives it many properties.
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- A classmate points out that we should not be overly concerned about the melting of Greenland's glaciers because it is not the only cause of sea level rise. What else can cause sea levels to rise? albedo O expansion of ocean water acidification desalination prolonged droughtsarrow_forwardWater is less dense as a solid than as a liquid. How does this property typically affect a lake ecosystem in freezing temperatures? O When the lake is frozen, fish still have access to liquid water for oxygen and swimming as well as access to food on the bottom of the lake O When the lake is frozen, fish still have access to liquid water for oxygen and swimming but no longer have access to food on the bottom of the lake. O When the lake is frozen, fish no longer have access to liquid water for oxygen and swimmng but do have access to food on the bottom of the lake. O When the lake is frozen, fish no longer have access to liquid water for oxygen and swimming and no longer have access to food on the bottom of the lakearrow_forwardWhy is the property of water expanding upon freezing important for aquatic life in cold climates? Group of answer choices It decreases the pressure on aquatic organisms living at great depths It causes ice to float, insulating the water below and protecting aquatic life from extreme cold It allows nutrients to become more concentrated in liquid water It increases the oxygen content in the water The expanding ice pushes phytoplankton lower into the water column, making it more easily accessible to those who survive on itarrow_forward
- Which of the following bodies of water has the greatest biomass (mass of living material - plant or animal) hints: The higher the oxygen levels, the greater the biomass. Choose from the following: (A) South China Sea (B) Arctic Oceanarrow_forwardThe halocline is the layer of ocean water where there is a transition from rapid change in salinity to gradual or no changes in salinity. A. TRUE B. FALSEarrow_forwardPlease complete the following question. 5arrow_forward
- There is growing support for the idea that as we warm the planet and spread fresh water over the North Atlantic from melting polar ice caps in the Arctic, we will slow down the conveyor belt circulation. What might happen to temperatures at: High Latitudes: At Mid and Low Latitudes:arrow_forwardWhich of the following is the primary source of the acid in acid rain?a. ozone produced by lightningb. carbon monoxide in automobile exhaustc. CO2 from the burning of coal and oil for powerd. sulfur dioxide from the burning of coal and oil for powerarrow_forwardWhich of the following does not vary predictably with the depth of the aquatic environment? a. dissolved oxygen c. penetration by sunlight b. temperature d. salinityarrow_forward
- A city’s sewage outfall flows 40 ft3/s of sewage with a BOD concentration of 30 mg/L anda DO of 1.5 mg / L into a small river that has a flow rate of 280 ft3/s and a velocity of 1.1 ft /s.The river has a natural BOD of 3.5 mg/L and at this time of year the DO level is 7 mg/L. Giventhe water temperature this time of year the DO saturation is 8.5 mg / L. Given a deoxygenationcoefficient of 0.59 day-1 and a rearation coefficient of 0.70 day-1, answer the following:a. what is the basic assumption we make regarded the mixing of waste into the river?b. calculate Do amd Lo just downstream from the outfallc. calculate the tiem and distance when DO is a minimumd. calculate the minimum DOe. Find the DO 10 miles downstream.arrow_forwardSuggest some possible implications of the phenomenon shown in the table (e.g. for the fishing industry or drainage basin management). Explain why these interpretations are not as reliable as the data itself.arrow_forward1. What causes ocean warming and acidification? It is caused mainly by carbon dioxide and many marine organisms that produce carbonate shells 2. Why are human activities that release carbon dioxide into the atmosphere causing concern? Type answer here. 3. How does the water chemistry charlge as carbon dioxide gas is dissolved in the ocean? Type answer here. 4. What will happen if man continues to release carbon dioxide into the atmosphere? Type answer here. 5. What are two economic risks of ocean acidification? Type answer here. 6. According to the author, what two things will ocean scientists in the future need to understand? Type answer here.arrow_forward
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