Awnsers are in question 3. For centuries, scientists accepted Ptolemy's view of the solar system,
which was that the Sun and planets orbit Earth. Which of the following
helped scientists gather data that caused this view to change?

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

and after water is usually warmed by the sun the water temperature raises and then evaporates .