Mass of block steel = 0.8*7.84= 6.272kg
Weight= 6.272kg*10N/kg= 62.72N
Answer:
It helps to support growth and helps producing energy to do vital functions.
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its true............................................true
The first land plants appeared around 470 million years ago, during the Ordovician period, when life was diversifying rapidly. They were non-vascular plants, like mosses and liverworts, that didn't have deep roots