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)

Coal is a fossil fuel which is used to produce electricity. Which of these statements best describes an outcome of coal mining on the region around the mines? (4 points)

Coal is a fossil fuel which is used to produce electricity. Which of these statements best describes an outcome of coal mining on the region around the mines? (4 points)

Two students, Student 1 and Student 2, did a hands-on mining exercise with cookies. 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 ? $2 $2.00 per minute 5 minutes 2 $4 $5 $2.00 per minute 6 minutes If Student 2’s total cost of mining is $3 more than Student 1’s total cost of mining, what is the cost of land for Student 1? (4 points)

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)

This picture shows some fortified cereal in a bowl. What mineral is most likely added to this cereal to increase its nutritional value? (4 points)

Uranium can supply energy for the world’s electricity without emitting harmful greenhouse gases. Which of these statements best describes an outcome of uranium mining? (4 points)

Two students, Student 1 and Student 2, did a hands-on mining exercise with cookies. 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 ? $2 $2.00 per minute 5 minutes 2 $4 $5 $2.00 per minute 6 minutes If Student 2’s total cost of mining is $3 more than Student 1’s total cost of mining, what is the cost of land for Student 1? (4 points)

Oil is a fossil fuel which provides power to sustain a modern lifestyle. Which of these statements best describes an outcome of oil drilling? (4 points)

This picture shows a MP3 player. What mineral is most likely used to make the MP3 player? (4 points)