A stapler is used to staple 100 papers, it jams 5 times during the trial. A different brand of stapler performs the same test, it jams 22 times

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?

Why do we perceive objects as retaining their brightness under different lighting levels?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?