The smallest living organism discovered so far is called a mycoplasm. Its mass is estimated as 1.0 x 10–16 g. Express this mass in petagrams.

Study the following reaction carefully. what classification should this reaction have? 4al + 3o2 2al2o3synthesisdecompositionsingle replacementdouble displacement

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.