Question 1

The process of desalination can be summarized as the

Accepted Answer

Desalination specifically refers to the process of removing salt from water, making it suitable for drinking and irrigation.

Question 2

Which of the following regulations would be aligned most closely with the Safe Drinking Water Act?

Accepted Answer

The Safe Drinking Water Act specifically focuses on the safety and quality of drinking water in the United States, including the regulation of contaminants such as arsenic in public water systems.

Question 3

Which of the following regulations would be aligned most closely with the Clean Water Act?

Accepted Answer

The answer of Which of the following regulations would be...

Question 4

You are reviewing photos from a research trip to Antarctica, and your collection includes photos of glaciers, permafrost, open ocean and forests. If your goal is to find photos of the cryosphere, which would you choose?

Accepted Answer

The cryosphere includes all frozen water and snow on Earth, which encompasses glaciers and permafrost. Open ocean and forests are not part of the cryosphere.

Question 5

How is permafrost different from a glacier?

Accepted Answer

Permafrost refers to ground (soil or rock and included ice and organic material) that remains at or below 0°C for at least two consecutive years, whereas glaciers are large masses of ice, formed from snow falling and accumulating over the years, that move slowly over land.

Question 6

Ocean water surrounding Greenland will often freeze to ice and then thaw depending on the season and temperature. This is a feature found in

Accepted Answer

The answer of Ocean water surrounding Greenland will often freeze...

Question 7

The reflection of the sun's rays off is referred to as albedo.

Accepted Answer

Albedo refers to the measure of how much light that hits a surface is reflected without being absorbed. Ice has a high albedo compared to other natural surfaces, meaning it reflects a significant portion of the sun's rays back into the atmosphere.

Question 8

Which of the following statements best describes a time period defined as an ice age?

Accepted Answer

An ice age is characterized by the extensive coverage of ice over large parts of continents, not necessarily by short-term temperature changes or rises in sea levels.

Question 9

Which of the following would be considered a measurement of salinity?

Accepted Answer

Salinity is measured as the concentration of salt in water, typically expressed in parts per thousand (ppt), parts per million (ppm), or grams per liter (g/L). Option D, "500 parts per thousand of salt per liter of water," directly describes a measurement of salinity.

Question 10

Surface currents are impacted most by

Accepted Answer

Surface currents are primarily driven by wind patterns, which are caused by air moving above the water.

Question 11

This figure illustrates which phenomenon of ocean currents?

Accepted Answer

The answer of  This figure illustrates which phenomenon of...

Question 12

Patterns of global airflow and water currents are influenced by the different speeds of rotation of the Earth. This is referred to as the

Accepted Answer

The Coriolis effect describes how Earth's rotation influences the direction of winds and ocean currents, causing them to curve rather than move in a straight line. This effect is crucial in understanding global patterns of airflow and water currents.

Question 13

The flow of water in deep currents can be influenced by variations in which of the following?

Accepted Answer

The flow of water in deep currents is influenced by variations in density, salinity, and temperature. These factors affect the water's density, causing it to move and form currents.

Question 14

London, England, is found at a latitude similar to parts of Newfoundland, yet its average temperature is much warmer. This is caused, in part, by

Accepted Answer

The thermohaline conveyor, also known as the global ocean conveyor or Atlantic Meridional Overturning Circulation, plays a significant role in regulating climate by transporting warm water from the equator towards the poles. This system is a key reason why places like London, which are at high latitudes, can have relatively mild climates compared to other regions at similar latitudes. The warm currents of the North Atlantic Drift, part of this conveyor, help to warm the climate of Western Europe, including London.

Question 15

Upwelling can cause colder water from deeper in the oceans to be brought to the surface. Despite the fact that the water is colder, this often leads to an increase in biological productivity. This is associated with

Accepted Answer

Upwelling brings nutrient-rich water from the deep to the surface, which supports the growth of phytoplankton, forming the base of the marine food web and thus increasing biological productivity.

Question 16

The El Niño-Southern Oscillation, which occurs every 2 to 10 years, alters weather patterns in many parts of the world. Why does it have this effect?

Accepted Answer

The El Niño-Southern Oscillation (ENSO) involves variations in the temperature of the ocean surface in the central and eastern tropical Pacific Ocean. This change in temperature can lead to the development of a countercurrent, altering weather patterns globally by affecting atmospheric circulation and precipitation patterns.

Question 17

Despite the fact that close to 70% of the Earth's surface is water, freshwater shortages are becoming an increasing problem. Explain why this is occurring.

Accepted Answer

The answer of Despite the fact that close to 70%...

Question 18

You are analyzing water samples taken from various depths of a lake, and you find a sample that contains photosynthetic bacteria. Which region of the lake would you hypothesize this sample was collected from, and why?

Accepted Answer

The answer of You are analyzing water samples taken from...

Question 19

If your community leaders announced that the aquifers that supply your city are low and reductions are needed in water usage, what are the most significant changes that you could make to reduce your water consumption? Describe at least two changes.

Accepted Answer

The answer of If your community leaders announced that the...

Question 20

Describe the factors that led to thousands of residents of Flint, Michigan, being exposed to high levels of lead in their drinking water.

Accepted Answer

The answer of Describe the factors that led to thousands...

Quiz 7: Water: How Do We Use It and Affect Its Quality