How is the movement of matter and energy different in an ecosystem? Nutrients can also cycle out of an ecosystem. Energy enters an ecosystem at any level and leaves at any level, while the flow of matter does not. The flow of matter cycles freely between trophic levels and between the ecosystem and the physical […]
Is oil really fossil fuel?
Is oil really fossil fuel? Fossil fuels include coal, petroleum (oil), natural gas, oil shales, bitumens, and tar sands and heavy oils. For modern life, these energy sources rival food and water in importance. Why can’t we get rid of fossil fuels? We understand today that humanity’s use of fossil fuels is severely damaging our […]
What changes can matter undergo?
What changes can matter undergo? Matter can undergo changes of two basic types: physical changes and chemical changes. Physical changes are processes in which a material changes its physical appearance but not its basic identity. The evaporation of water is a physical change. What are the two kinds of changes that matter may undergo describe […]
Why do humans hear better in air than underwater?
Why do humans hear better in air than underwater? On land, sound travels through air conduction. This means that sound waves travel through the air, causing your eardrum to vibrate. Researchers have determined that bone conduction allows us to hear sounds underwater that are much higher in pitch than sounds we hear on land. Can […]
How do you get rid of x10 on calculator?
How do you get rid of x10 on calculator? Casio models: Press [SHIFT][MODE][6:Fix]. You are then prompted to enter a number between 0 and 9. The number you enter fixes the number of decimal digits your results will have. What does E 4 mean on calculator? The eā4 part means that the decimal point in […]
How many bodies are in the Body Farm?
How many bodies are in the Body Farm? five bodies What are the two primary goals of the Body Farm? Download ppt “THE BODY FARM PRIMARY GOAL: To understand the processes & timetable of postmortem decay, primarily to improve determining the “time since death” in murder.” What are the five stages of decomposition? A corpse […]
Why does path of light beam become visible while passing through a smoked room?
Is Climbing the Leaning Tower of Pisa worth it?
What are the 3 causes of scarcity?
What are the 3 causes of scarcity? In economics, scarcity refers to resources that a limited in quantity. There are three causes of scarcity ā demand-induced, supply-induced, and structural. There are also two types of scarcity ā relative and absolute. How does scarcity affect your life examples? Scarcity of resources can affect us because we […]
Which is better leaf or coil springs?
Which is better leaf or coil springs? Leaf springs are better for heavier vehicles and those who may need to haul more weight. They’re also simpler but less adjustable than coil springs. Coil spring suspension systems are better for performance driving as you can fine-tune your suspension. They offer greater comfort and flexibility for improved […]