The body of water labeled with the number 3 on the map above is the and the body of water labeled with the number 7 is the

a.

orinoco river . . atlantic ocean

b.

orinoco river . . pacific ocean

c.

paraná river . . pacific ocean

d.

amazon river . . atlantic ocean

select the best answer from the choices provided

a

b

c

d

These factors threaten north americas ecosystems

Which of the following statements best characterizes changes to agriculture in the united states since 1900? a. increased mechanization has reduced the need for labor. b. increased mechanization has increased the need for water, thereby increasing the need for labor. increased mechanization has increased the use of land, thereby increasing the need for labor. d. increased mechanization has increased food production, thereby increasing the need for labor. select the best answer from the choices provided.

Mosses, lichens and shrubs can be found where in russia? a. grasslands b. mountain regions c. coastal plains d. siberian tundra