What are the negative consequences of using them?

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle

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