Answer:
Explanation:
metal can become magnetic if they have many spinning electron. When the majority of atoms spin in the same direction the strong magnetic field is produced the direction of electron spin determine the direction of magnetic field
Answer:
two
Explanation:
The diploid cells of most adults organisms contain two complete sets of inherited chromosomes and two complete sets of genes.
Answer:
Because it usually takes a long time, and is a very long process.
Explanation:
A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms