Two students, Student 1 and Student 2, did a hands-on mining…

Two students, Student 1 and Student 2, did a hands-on mining exercise with cookies to compare the total cost of mining in two different land areas using different equipment. The table below shows the costs of land, equipment, mining, and reclamation for the two students. Students Cost of land Cost of equipment Cost of mining and reclamation Time taken to mine the area 1 $5 $2 $2.00 per minute 5 minutes 2 $4 $5 $2.00 per minute 6 minutes What is the difference in the total mining costs for Student 1 and Student 2? (4 points)

Matt observed that the corn plants on his farm were not grow…

Matt observed that the corn plants on his farm were not growing well. He tested the soil sample on his farm and found it to be silty clay loam. Matt knows that sandy clay loam is the best soil type for corn plants. Based on the soil texture triangle, which of these is the best method that Matt can adopt to improve the quality of corn plants on his farm? (4 points)

Mining activities can help acquire minerals like coal, which…

Mining activities can help acquire minerals like coal, which provide energy. However, mining activities are also harmful for the environment. The table below shows the number of major sinkholes formed in a mining location from 1990 to 1998.   Years Number of sinkholes 1990 15 1992 18 1994 20 1996 58 1998 78 Based on the table, which of the following is the most likely time frame when mining operations were started in the location? (4 points)