Which of the following is the most susceptible to damage by pollution in the air and precipitation? The roots of trees
Trees at high elevations
Bird that migrate seasonally
Plants that grow in lakes or rivers

equal distribution i think.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

i won't lie i don't know so go online and ask google thats what i do

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.