Correct answer choice is:
<h2>D. They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.</h2><h3>Explanation:</h3>
The matter is a substance that has inertia and holds bodily area. According to advanced physics, matter consists of several kinds of particles, each with volume and area.
A pure element indicates a substance whose atoms possess the equivalent atomic number or number of protons.
Silver is extensively utilized as a manufacturing catalyst for the composition of ethylene epoxide via ethylene oxidation and for formaldehyde via methanol oxidation. Oxygen classes on silver are determined to perform a pivotal use in ethylene epoxidation and particular methanol oxidation.
The outcome of the reaction between hydrogen gas and oxygen gas is water vapor (gas).
Water and carbon dioxide are compounds composed of various elements, whereas, silver and oxygen remain pure elements.
d. dynamic and changing
Explanation:
The marketing environment is best described as being dynamic and changing.
Marketing is a set of activities whereby a company promotes their products and services.
- A marketing environment refers to all factors that ensures the producers serves their customers better.
- There is no real static model to make predictions about the marketing environment.
- Since it is targeted and centered on customers, the marketing environment is constantly changing and dynamic.
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Incorporating basic life support, the first thing one should do is survey the scene. Look for any obstacles that will make the response difficult such as shattered glass, fire, etc. Second, call emergency hotline (usually it's 911 but it may differ from other countries). If you are a certified basic life support provider, then continue with the next steps. Next step would be checking the patient's airway, breathing, and circulation (ABC) by checking the if there is blocking the airway, or if the patient can breathe spontaneously, as well as the pulse. Next step would be assess if the patient as a cervical fracture as this should be handled carefully. If the patient is not breathing or has no/decreased pulse then proceed with doing CPR until help arrives.
The muscles that contract (during cold or fright), the slanted hair follicle is pulled upright, dimpling the skin surface with goosebumps are called arrector pili muscle.
The arrector pili muscle are tiny muscle that attaches to the base of the hair follicle at one end and to the dermal tissue on the other end. When the body feels cold or fright the body generate heat and the arrector pili muscle contract all at once, that causes goosebumps on the skin.
The arrector pili muscle acts as the thermoregulator. Straight stand hair increases air trapping, so that the heat loss from the body decreases. The arrector pili muscle are mediated by the sympathetic nervous system.
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