⦁ A strip of copper placed into a zinc sulphate solution will not produce an appreciable reaction, because copper is below zinc on the series and can't displace zinc ions from solution. Activity to arrange sodium, magnesium and copper in the order of their decreasing reactivity:

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.