Answer:
La tierra es la vida que los suministros son alimentos y recursos... la vida es un gran propósito. Espero que ayude:)
This is correct. Even the basic scientific theories get tested and checked time after time after time. The most basic example would be that people once thought the Earth was flat and now it changed and they believe it is round.
The first step in soil formation is the weathering of parent rock into smaller pieces.
Emerald!!!!!!!!!!!!!!!!!!!!!!!
The answer is A because when similar fossils were found on different continents it led<u> </u><u>Alfred Wegener</u> and other scientists to believe that those continents were connected before they were separated because of continental drift.