was there any artists' protest for this tower?
Yes, led by Charles Garnier.
Eiffel Tower
 These objections were an expression of a long-standing debate in France about the relationship between architecture and engineering. It came to a head as work began at the Champ de Mars: a "Committee of Three Hundred" (one member for each metre of the tower's height) was formed, led by the prominent architect Charles Garnier and including some of the most important figures of the arts, such as William-Adolphe Bouguereau, Guy de Maupassant, Charles Gounod and Jules Massenet. 
a food preservation method in which microorganisms metabolize components of a food is UNANSWERABLE what do you mean by metabolism? It is the set of life-sustaining chemical reactions in organisms. what are the main purposes of it? The conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates; and the elimination of metabolic wastes. what is the role of amino acids and protein in this process? Proteins are made of amino acids arranged in a linear chain joined together by peptide bonds. Many proteins are enzymes that catalyze the chemical reactions in metabolism. who discovered the above mentioned which catalyze the chemical reaction? Anselme Payen was the first to discover an enzyme ,diastase. and when did he discover? Discovered the enzyme diastase and the carbohydrate cellulose. where was he born? Paris. was there ever a terrorist attack in the place mentioned? Yes, between July and October 1995, a series of bombings were carried out by the Armed Islamic Group of Algeria. are there any casualties because of these series of bombings? Yes, 8 deaths. what is the geographical area covered by this place? Paris is located in northern central France, in a north-bending arc of the river Seine whose crest includes two islands, the Île Saint-Louis and the larger Île de la Cité. how is the population statistic there? The official estimated population of the City of Paris was 2,206,488 as of 1 January 2019. which are the most famous monuments and attractions of this place? Basilica of Sacre-Coeur, Louvre, the Eiffel Tower, the Centre Pompidou , the Musée d'Orsay and many more. which are the different mode of transport in this city? Railways, roadways and airways. what is the last attraction mentioned in the above list? A museum. when was this established? The opening was in 1986. from where the above mentioned tower receive its name? It is named after Gustave Eiffel. what can you tell me about the height of the tower? The tower is tall, about the same height as an 81- building, and the tallest structure in Paris.
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Eiffel Tower [SEP] Artists' protest
Indeed, Garnier was a member of the Tower Commission that had examined the various proposals, and had raised no objection. Eiffel was similarly unworried, pointing out to a journalist that it was premature to judge the effect of the tower solely on the basis of the drawings, that the Champ de Mars was distant enough from the monuments mentioned in the protest for there to be little risk of the tower overwhelming them, and putting the aesthetic argument for the tower: "Do not the laws of natural forces always conform to the secret laws of harmony?"