What two names are given for the lines that run around the earth in and east-west direction

Need now! 45 points laboratory: weather map interpretation i need someone to answer the other two questions. i will give to the best answer!

The oldest seafloor in the atlantic ocean is located closest to the edge of the continents. explain how this age can be used to figure out when north america first began to separate from europe

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.