Question: For example, at 30 MHz (10 m wavelength) a true resonant 14-wavelength monopole would be almost 2.5 meters long, and using an antenna only 1.5 meters tall would require the addition of a loading coil. Then it may be said that the coil has lengthened the antenna to achieve an electrical length of 2.5 meters. However, the resulting resistive impedance achieved will be quite a bit lower than the impedance of a resonant monopole, likely requiring further impedance matching. In addition to a lower radiation resistance, the reactance becomes higher as the antenna size is reduced, and the resonant circuit formed by the antenna and the tuning coil has a Q factor that rises and eventually causes the bandwidth of the antenna to be inadequate for the signal being transmitted. This is the major factor that sets the size of antennas at 1 MHz and lower frequencies.
Is there an answer to this question: What can be added to allow for an antenna shorter than the needed height to produce desired results?

Answer: loading coil

Question: Nanjing is one of the most beautiful cities of mainland China with lush green parks, natural scenic lakes, small mountains, historical buildings and monuments, relics and much more, which attracts thousands of tourists every year.
Is there an answer to this question: List three natural attractions of Nanjing.

Answer: lush green parks, natural scenic lakes, small mountains

Question: Hayek continued his research on monetary and capital theory, revising his theories of the relations between credit cycles and capital structure in Profits, Interest and Investment (1939) and The Pure Theory of Capital (1941), but his reputation as an economic theorist had by then fallen so much that those works were largely ignored, except for scathing critiques by Nicholas Kaldor. Lionel Robbins himself, who had embraced the Austrian theory of the business cycle in The Great Depression (1934), later regretted having written the book and accepted many of the Keynesian counter-arguments.
Is there an answer to this question: What was the result of Hayek's Prices and Production?

Answer: works were largely ignored

Question: Pesticides can be classified based upon their biological mechanism function or application method. Most pesticides work by poisoning pests. A systemic pesticide moves inside a plant following absorption by the plant. With insecticides and most fungicides, this movement is usually upward (through the xylem) and outward. Increased efficiency may be a result. Systemic insecticides, which poison pollen and nectar in the flowers[citation needed], may kill bees and other needed pollinators[citation needed].
Is there an answer to this question: In which direction do systemic pesticide generally travel through a plant?

Answer:
movement is usually upward