Biology, 29.07.2019 20:30 monyeemonyee12
Solar energy from the sun's rays is absorbed by the earth's land and water surfaces. this absorbed energy is then radiated back to the atmosphere as infrared radiation. most of the radiation cannot be transmitted and is absorbed by the atmosphere. this absorption adds heat to the atmosphere and keep the earth warm enough to support life. the process described above is known as
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Biology, 21.06.2019 16:00
Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesnβt break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water youβd break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove
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Biology, 21.06.2019 20:00
The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents
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Biology, 22.06.2019 17:40
Which statement best describes the first stage of cellular respiration? check all that apply
Answers: 1
Solar energy from the sun's rays is absorbed by the earth's land and water surfaces. this absorbed e...
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