The U. S. has sent unmanned spacecraft to the planets in our solar system. A. all B. most C. some D. none of

Every planet in our solar system has been visited by an unmaned spacecraft sent by the United States. The launch years are given in this order

well schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  not be written on computer in this day and age.

don't delete this trying to

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.