The arrival of spring means sunny skies and blooming flowers, but the warm weather comes with a price.

Fredericton has declared a state of emergency due to heavy flooding, joining Belleville and parts of Peterborough where residents continue to battle high water.

Dr. Greg Brooks

What can you do to be prepared for a flood? What essentials should your safety kit include?

Natural Resources' Dr.Greg Brooks took your questions on flood safety.

Read his responses after the jump.

The federal government is expected to designate the chemical Bisphenol A a dangerous substance. This shortly after many major retailers pulled plastic products containing the chemical off their shelves.

What is Bisphenol A? What are the dangers associated with the chemical? What products can it be found in?

Dr. Joe Schwarcz is the director of McGill University’s Office for Science and Society.

Dr. Joe Schwarcz

On Monday, April 21 he took your questions on Bisphenol A.

Read his responses after the jump.

It's not quite the lawless wild west some believed it to be many years ago, but the internet still requires some savvy legal navigation.

Are you legally responsible for the comments on your website? What about defamation and libel on the net? What are the laws and who is affected?

Dr. Michael Geist

Dr. Michael Geist is a law professor at the University of Ottawa where he holds the Canada Research Chair of Internet and E-commerce Law.

On Wednesday, April 9 he took your questions on technology and internet law.

Read his responses after the jump.

Rising oil prices have many consumers angry and concerned, not just about cost but about global petroleum production. The theory of peak oil — the idea that we will reach a maximum point of consumption at which point production will permanently decline — has been floating around since 1956.

Now two scientists, Dr. Richard Gilbert and Dr. Anthony Perl, are suggesting we may hit peak oil in 2012. In their book Transport Revolutions: Moving People and Freight Without Oil they discuss what to do with transportation in the face of oil.

Read CBC News correspondent Eve Savory's interview with Gilbert and Perl here

What do you think? Is peak oil just around the corner or decades away?

Can the market solve the problem, and is it more urgent than climate change?

On Tuesday, April 8 Drs. Gilbert and Perl took your questions on peak oil.

Read their responses after the jump.