What makes mining possible in continental crust? 2-3sentences science

Due to softer materials.

Explanation:

Lighter materials of the crust made mining possible in continental crust because the materials present in the upper part of the crust are softer and lighter as compared to lower part. When the earth surface cools down, the lighter materials moves upward while denser materials remains in the center so that's why mining can be done in the continental crust due to its softer nature.

emerald ash borer

the emerald ash borer is a green buprestid or jewel beetle native to north-eastern asia that feeds on ash species. females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years. hope this !