Environmental science

_____ accounts for almost 70 percent of water use. - correct answers Agriculture A garden supply company has an advertisement selling beneficial bacteria. They claim that the bacteria will help gardeners grow better gardens because of better soil. What can some bacteria do for soil? - correct answers improve fertility A geologist is examining a new sample of rock. She is trying to categorize it based on its physical properties. Which of the following characteristics cannot be identified based on her basic visual and tactile assessment? - correct answers melting temperature A large hole that opens in the ground as a result of overpumping groundwater is a _____. - correct answers sinkhole A rock has been formed by the accumulation of bits of rocks that were originally formed by the release of heat by magma. How should this rock be classified? - correct answers sedimentary rocks A sample of soil from a C horizon is light brown in color and has a high content of a mineral called feldspar. Which of the following statements is most likely true? - correct answers The parent material rock had feldspar minerals in it. Abiotic - correct answers actors are the non-living things found in an ecosystem such as water, air, nutrients, soil, and solar energy. Solar energy is an essential abiotic component of all ecosystems because it directly or indirectly provides the energy that all organisms need to survive. It is the energy that drives photosynthesis and makes all life possible. absolute dating - correct answers process of determining a specific date of an event or fossil and relies mainly on the radioactive decay of different elements. Each element has a half-life that can be measured in fossils and rocks, which gives an estimate that is more accurate than relative dating. agriculture - correct answers the science, art, and business of cultivating soil, producing crops, and raising livestock albedo - correct answers a measure of the amount of light that a surface reflects All of the following are examples of surface water except - correct answers aquifers An area where soil has eroded experiences _____. - correct answers a loss of nutrients aquifer - correct answers an underground layer of earth, gravel, or sand that yields water As the human population grows _____. - correct answers resources will be depleted we will continue to find resources on Earth more plants will grow due to increased human consumption of herbivores the sun will provide less energy per person ASSIGNMENT 16 - correct answers gives notebook guidelines if necessary asthenosphere - correct answers the region below the lithosphere, variously estimated as being from fifty to several hundred miles (eighty-five to several hundred kilometers) thick, in which the rock is less rigid than that above and below, but rigid enough to transmit transverse seismic waves At what temperature did water freeze on Earth 1 billion years ago? - correct answers 0°C At which location would sunlight have to pass through the thickest amount of atmosphere before reaching Earth's surface? - correct answers at the poles biodiversity - correct answers a measure of the variety of species in an environment biome - correct answers a geographical area with similar climate and soils, which contains similar organisms