What is a structure found in plant cell but not in animal cells

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?

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down