Flying in the First World War was extremely dangerous because? a) planes were easy targets for anti aircraft guns.
b) pilots had very simple instruments and could easily get lost behind enemy lines.
c) planes were made of cloth and wood, and afforded little protection against enemy
fire.
d)all of the above

can't without checkbox

southern north america: yucatán peninsula in southern mexico extending into northern guatemala, and northern belize. these moist forests on the yucatán peninsula of south-eastern mexico are characterized by a tropical humid climate with little topographic relief.

explanation:

the answer is b. i did this test and got it right.