Asmall polar molecule enters a cell with from a membrane protein. no additional energy was needed to complete this process. what typem of transport his this?

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water