How to decided the tenses in the sentence?

1. saraswati is celebrated every 210 days falling on Saturday umanis watugunung
2. it is just like welcoming the new year where celebration is focused on science along with all its components like book.
3. why science is so important?
4. as it already known, science gives expertise and guidance to humans in facing their life.
5. and also distinguishes them from other living beings as well.
6. the hindus has a doctrine called tri pramana that consists of thinking, energy, and orality.
7. plants have bayu only, animals have bayu and sabda while humans have all three.
8. therefore by this superiority humans should treat others better and wisely and not annihilate them or take excessive benefits from nature.
9. science can lead human beings to prosperity and wisdom symbolized be the beautiful goddes saraswati.