Mastering Environmental Science Chapter 5 Homework

the bulk of all of the water found on Earth

Earth's oceans hold a. about the same amount of water as all Earth's rivers and lakes combined b. about the same amount of water as all groundwater sources combined c. the bulk of all of the water found on Earth d. most of the fresh water on Earth

radiation from the sun, heat

Most energy in the majority of ecosystems arrives as ___ and exits in the form of ___. a. chemicals from the ocean, heat b. radiation from the sun, heat c. heat, radiation from the sun d. chemicals from the ocean, radiation from the sun

ice sheets and glaciers

The largest percentage of fresh water today is located in: a. ice sheets and glaciers b. soil c. the rivers and lakes of the world d. groundwater resources

characteristics that are not evident in the system's individual components but are evident only by looking at the whole operating system

What does the term emergent properties describe? a. characteristics that are not evident in the system's individual components but are evident only by looking at the whole operating system b. the particular timing and season of emergence of organisms from dormancy c. the particular timing and season of emergence of flowers in the spring, as long as timing of the emergence of flowers is not being changed by global climate change d. the characteristics of emerging vegetation such as the forb called fireweed

energy flows through an ecosystem; nutrients cycle

Which best describes how energy and nutrients work in an ecosystem? a. because energy is stored as carbon compounds, energy and nutrients are the same thing b. energy and nutrients are both recycled in ecosystems c. energy flows through an ecosystem; nutrients cycle d. nutrients flow through an ecosystem; energy cycle

fertilizer runoff from farms, animal manure, stormwater runoff

Which of the following best characterizes the factors that have contributed to the "dead zone" in the waters of the Chesapeake Bay for the past few decades? a. the farm practices around the Chesapeake Bay b. gasoline spillage from the refineries c. fertilizer runoff from farms, animal manure, stormwater runoff d. increasing oil spills in the Chesapeake Bay

oxygen

Which of the following is an end product, or output, of photosynthesis? a. sunlight b. carbon dioxide c. oxygen d. nitrogen

Most of the water that falls on the continents is derived from the oceans

Which of the following is true of the hydrologic cycle? a. Most of the water that falls on the continents is derived from the oceans b. The bulk of the precipitation occurs over land c. Most evaporation on Earth occurs over the continents d. Atmospheric water and surface water do not mix

warm temperatures and strong winds

Which two factors can speed up the process of evaporation? a. warm temperatures and proximity to the ocean b. strong winds and proximity to the ocean c. warm temperatures and strong winds d. increased cloud cover and low temperatures