Where is most of the earth's land mass-north or south of the equator?

Nami conducts an investigation on plants. she places a grow light on a timer to give the plants different amounts of light to see if this would affect their growth. in this investigation, the amount of light is the .

When recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous years?

The american public was excited by the invention of the railroad system. true false