Small main sequence stars may continue undergoing hydrogen fusion for hundreds of billions of years. these stars are called a) protostars. b) red dwarfs. c) white dwarfs. d) neutron stars. e) black holes

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.

The english language is part of which language family? a. alatic b. dravidan c. indo-european d. khoisan

Which arrow is closest to laguna madra bay? a. 1 b. 2 c. 3 d. 4