What are the steps of DNA in the correct order (1,2,3)

Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?

*will mark brainliest to the first and correct answer less species diversity results in less a. oxygen b. food c. drinkable water d. all of the above

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?