Distinguish among lithosphere, hydrosphere, atmosphere, and ecosphere.
-The lithosphere consists of the crust and upper mantle of the Earth. In the lithosphere there is nonrenewable fossil fuels, minerals, soil, and renewable soil chemicals.
-The hydrosphere consists of the Earth’s water. This includes liquid water, ice, and water vapor.
-The atmosphere consists of the fine membrane of air surrounding the planet.
-The ecosphere is also known as the biosphere. It includes most of the hydrosphere, parts of the lower atmosphere, and parts of the upper lithosphere. Every part of the ecosphere is connected.
Briefly describe how the sun, gravity, and nutrient cycles sustain life on earth.
1. Solar energy flows through materials …show more content…
An open system is one in which mass or energy can be lost to or gained from the environment.
Name and briefly describe three different nutrient cycles.
Water Cycle- The water cycle is one that can be altered by man’s activities. It is influenced by us when we withdraw large quantities of fresh water, clear vegetation, increase runoff, reduce filtering, increase flooding, add nutrients to water, and contribute to global climate change.The water cycle helps to collect, purify, and distribute the Earth’s water. It occurs when solar energy evaporates water. Then, the water returns as precipitation. This water enters organisms, goes back into a body of water, and the process starts over.
Carbon Cycle-The carbon cycle circulates carbon throughout the biosphere. Carbon moves through water and land systems. It is important in CO2 gas which helps regulate the Earth’s temperature. CO2 is also necessary in photosynthesis and aerobic respiration. Fossil fuels and other nonrenewable resources contain carbon. Carbon recycles through the oceans, which is a carbon sinkhole. When it is warmed, carbon is released. Excess carbon dioxide’s floats up to the atmosphere when we use fossil fuels, destroy vegetation,