Why are head and spine injuries much more serious than muscle strain or hematomas? a. head and spine injuries can result in permanent disabilities. b. muscle strain can result in long-term health problems. c. spine injuries are generally quick to recover from. d. they require moving the athlete off the playing field immediately.

A. Head and spine injuries can result in permanent disabilities

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 !

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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