3 The farmer decided that there was no need to add more than about 60 kg of fertiliser per hectare. Explain how the results of the experiment support his decision. Remember that fertiliser is expensive.

Which of the following terms describes the layers of air surrounding the earth ?

Rah is completing a school project on the expansion of fast food restaurants across the united states. she finds a map that shows a clear pattern of restaurants beginning in the east and expanding west. this map was most likely created using the technology of

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.