Why is petrified wood considered a fossil? Petrified wood was part of a plant that has been changed into rocks.
Petrified wood is can be burned to make create energy.
Petrified wood is dense like a fossil.
Petrified wood contains minerals that are only found in fossils.

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

Type the correct answer in the box. spell all words correctly.what is the correct term for living the most sustainable life you can within your current circumstances? when your are being as sustainable as you can within your current lifestyle, you are said to be sustainability.

Name the element in group 17, period 2. (periodic table)