Answer:
the current is directly proportional to the voltage and inversely proportional to the resistance.
Explanation:
Answer:
Surface mining is suitable for large, low-grade ore deposits which occur below a thin layer of rock or sand. Underground mining is used for small, high-grade deposits covered with a thick soil or rock above the ore. Alluvial mining is suitable for deposits in sand and riverbeds.
Explanation:
Environmental impacts of mining can occur at local, regional, and global scales through direct and indirect mining practices. Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes.
Hello,
Question 42: I'm not sure because there are no answers.... I don't know what answers A, E, C, and D say.
Question 43: I think the answer is B) The moon revolves around the Earth.
I really hope this helps!!!! Happy Holidays!!!! (:
