questions ( reply quickly please )

[adhass]

complete :

- The presence of the moon between the earth and the sun leads to the ......... phenomenon .

- The arrangement of the chromosomes pairs in the first prophase in the line ....... the cell .

- A virtual , erect , enlarged image can be formed by ........ mirror .

- The spindle fibres are formed during the cell division in ....... phase and disappear in the ..... phase .

correct the underlined word :

- The focal length of the mirror = 1 / 2 the radius of curvature of the mirror .
( correct ( 1 / 2 ) )

شكراااااا بس ارجو الرد سريعا