I need help will this asap. I don’t understand it

Space is not completely empty. there are small particles in space. what happens when these particles come together?

Which statement most accurately describes one way that either judeochristian principles or greco-roman principles have influenced modern democracy?

Tori is researching for her blog post about how wearing sunblock can prevent skin cancer, and she finds a page about her topic on the united states centers for disease control website at is this a reliable site for tori’s research? yes, because it is presented by a college or university no, because it is a personal opinion about the subject yes, because it is run by a governmental organization no, because it is intended to advertise a certain product