Which of the following energy sources is relatively expensive to set up, but has a low cost once its in place?

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Describe five factors that influence the value of fuel

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what