class 8 science chapter 2 class 2
TRANSCRIPT
Slide 1
1
-2 - - -
3
4
( )
,
5
6
2nnnnnnn
7
8
92n2n2n
2nnnn
nnn2nn2nn2n4n
2nnnnnnn10
11
12
13
( )
( )
14
15
16
17
? ? ? ?
18
19
20
21
TRANSCRIPT
Slide 1
1
-2 - - -
3
4
( )
,
5
6
2nnnnnnn
7
8
92n2n2n
2nnnn
nnn2nn2nn2n4n
2nnnnnnn10
11
12
13
( )
( )
14
15
16
17
? ? ? ?
18
19
20
21