What are the time divisions that are used for the geologic time scale and what determines how they are divided?

2/6 of be by to 2/6 is to 24/72 ?

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.

Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia