What is the second planet closest to the sun?

http://en.wikipedia.org/wiki/Venus

The second planet closest to the sun is Venus. You can find this information on the Wikipedia page for Venus. To get to the page, you can use an internet search engine like Google and search for "Venus planet". The Wikipedia page for Venus will likely be one of the top results. Once you open the page, you will find the relevant information about Venus being the second planet closest to the sun.