Subject: Do plant roots always grow downward?

Hi, I need a primary resource that has educational knowledge on the topic of 
roots and plant growth. Please e-mail me back with information about the 
questions that I am going to ask. I need someone to talk to me directly with 
information about the topic of root growth. Here are the three questions I 
would like for you to ask.

Do plant roots always grow downward?

What direction do the roots grow in (if they don't always grow downward)?

And...

Why do they grow this way?

Thank you very much. Please get back to me promptly with answers to these 
three questions.

Laura

Re: Do plant roots always grow downward?