A boy in Malawi helps his village by building a wind turbine after reading about them in a library book.
A boy in Malawi helps his village by building a wind turbine after reading about them in a library book.
6.5
6.6
6.2
7.2
7.6
7.5
6.9
6.5
6.8
6.5
7.5
8.1
6.7
6.4
4.4
4.8
4.0
6.6
6.9
7.9
