Bonjour en gestion numérique je dois faire 3 questions mais j'y arrive pas s'il vous plait: 1:Expliquez en quoi consiste le problème économique de la rareté en vousappuyant sur l’exemple de l’énergie.

2:Calculez la part de la durée des réserves de chaque type d’énergie nonrenouvelable dans la durée totale des réserves de ces énergies. Commentez les résultats obtenus.

3:Relevez les choix économiques à faire pour améliorer le bien-être des individus.

Question 1(multiple choice worth 5 points) (06.04 mc) how are the respiratory and circulatory systems similar? both systems provide glucose and other substances to cells. both systems regulate blood flow throughout the body. both systems remove carbon dioxide from the body. both systems send messages to the nervous system for breathing. question 2(multiple choice worth 5 points) (06.04 lc) the respiratory system controls and the circulatory systems controls antibodies; digestion breathing; blood flow muscles; bones nerves; senses question 3(multiple choice worth 5 points) (06.04 hc) read the following summary, which describes a body process. then, answer the question. blood enters the right side of the heart and travels to the lungs. there, the lungs eliminate carbon dioxide and exchange it for more oxygen. the oxygen-rich blood enters the left side of the heart. then, arteries carry blood away from the heart. what process is being described? circulation excretion immune response respiration question 4(multiple choice worth 5 points) (06.04 lc) the system is responsible for moving blood cells throughout the body. circulatory endocrine immune respiratory question 5(multiple choice worth 5 points) (06.04 mc) which of the following functions as part of the excretory and respiratory systems? blood heart intestines lungs

Select all that apply. what types of documents can be created using word-processing software? business newsletters letters of application presentation slideshows customer databases

3. when you right-click a linked spreadsheet object, what commands do you choose to activate the excel features? a. linked worksheet object > edit b. edit data > edit data c. linked spreadsheet > edit d. object > edit data