Earth science obligatory for the fourth grade of middle school, with questions and solutions for exams for previous years

Earth Science, Fourth Preparatory School, is an Android application for reading material online in a simplified manner.

The application contains:

Mandatory Earth Science, Fourth Preparatory, First Semester

Mandatory Earth Science, Fourth Preparatory, Second Semester

Required Earth Science, Fourth Preparatory, Third Semester

Required earth science for the fourth year of preparatory school, fourth semester

Mandatory Earth Science, Fourth Preparatory, Fifth Semester

Mandatory Earth Science, Fourth Preparatory, Sixth Semester

Mandatory Earth Science, Fourth Preparatory, Solution to Exercises

Required to solve exam questions in earth science, fourth preparatory