What do scientists predict killed the dinosaurs?
a) aliens
b) people
c) pollution
d) climate change

radioactive decay occurs when atoms
a) lose mass.
b) join with atoms of another element.
c) break down to form atoms of another element.
d) are exposed to chemical weathering.

Quiero una redaccion de yo soy medico y que tenga 10 lineas

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation

Informatii despre riul nistru dup algoritmul pozitia pe continent originea denumirii lungimea izvorul gura de varsare afluentii directia riului caracterul cursului activitatea de model are regimul. de inghet variatia nivelului so volu! mul de apei tipul de alimentatie importantanta pentru om unitatile de relief strabatute caderea riului