- Jacques Descloitres, MODIS Rapid Response Team, NASA/GSFC
- Dust storms from the Sahara Desert blow out over the Atlantic Ocean, obscuring the Cape Verde Islands, in these images from the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite captured during the summer and fall of 2002, as well as early 2003. Dust transport can have positive and negative consequences. On the one hand, it can bring minerals and nutrients from the soil to marine ecosystems. On the other hand, it can carry viruses and fungi that decimate corals as far away as the Caribbean.
- Chemical compound (Wikipedia)
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemical reaction, which may involve interactions with other substances. In this process, bonds between atoms may be broken and/or new bonds formed.