What properties of life do viruses have? What properties do they lack?Do you think viruses are alive? Why or why not? Someone help please

The shift of a vehicle's weight around its center of gravity is known as

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere