The image illustrates one way to provide landscaping while managing resources sustainably. What is one disadvantage of using this method of
landscaping?
A. It produces a lot of air pollution.
B. It uses a lot of fossil fuels.
C. Some people find it unattractive.
D. It uses a lot of water.

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the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.