What kind of bond?

How can you identify a precipitation reaction? What is the temperature of the ozone layer? What is a non-geographical community? Is a sunflower a carnivore? Do greenhouse gasses make Earth's atmosphere warmer and if so why? What are the common ions present in toothpaste? Does carbon fiber scratch? 375 ml equals how many ounces? When it is 5pm in london what will be the time in washington DC? Is there a pathway through the rock cycle in which magma becomes sedimentary rock? What is happening when scientist explore the world around them? Can doctors test for neurotransmitters and if they can how accurate are these tests and why is such testing not routinely done with bipolar patients before prescribing medications? What is oceanography what was learned from the challenger expedition? What lens is found in the eye? Why is Betelgeuse red? What does SO4 mean? Is uranium soluble? How plants turn sunlight into energy using scientific terms? What can one measure with a marine chronometer? What is the purpose of thorns on aloe vera leaves?

What kind of bond?