Cses 2040: Exam 2 Questions And Answers 100% Correct 2024

Complete degradation of an organic compound under aerobic conditions should produce_____ oxygen (O2) carbon monoxide (CO) methane (CH4) carbon dioxide (CO2) ammonia (NH3) {Ans: carbon dioxide (CO2)}Which soil water potential represents the dries soil condition? Under these conditions, water would likely move via matric forces. 30 kPa 10 kPa -10 kPa -30 kPa 0 kPa {Ans: -30 kPa}A soil at pH 4.0 will have ______ H+ activity compared to a soil at pH 8.0. a. 4000x more b. 4000x less c. 10,000x more d. 10,000x less {Ans: c. 10,000x more}The concentration of which of the following elements will increase as soil pH decreases from 6.0 to 4.0. a. Mn b. Fe c. Zn d. all of the above {Ans: d. all of the above}Which of the following is a good general practice to maintain or improve soil organic matter? Replace native perennial vegetation with annual row cropping systems Fallow winter fields Remove vegetation whenever possible Minimize crop removal when harvesting Deep tillage practices that incorporate any surface residues into the soil {Ans: minimize crop removal when harvesting}Under optimum conditions, as temperature increases by 10C, bio chemical reactions will: a. increase 100x b. double c. decrease