Which era does the rock of the canadian shield date back too?
a. paleozoic
b. precambrian
c. cenozoic
d. mesozoic

There are four natural regions in texas. t f

Which of these is least likely to be an adaption? a. a mouse digs a hole to hide from predators. b. a snake bites its prey to deliver it deadly venom. c.a jackrabbit has large ears that it release body heat. d.a parrot learns to say its owner's name.

The map above shows the countries of the middle east. which number on the map shows the location of iraq? a. 1 b. 2 c. 3 d. 4