Which of the following are possible causes of global warming? check all that apply

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit