Atree is planted in a meadow.

after 20 years it has grown into a big tree, weighing 250kg more than when it was planted.

where do the extra 250 kg come from?

explain your answer as fully and scientifically as you can.

Energy derived from hot rocks and fluids beneath the earth’s surface is

During an investigation of an xss attack, the investigator comes across the term "[a-za-z0-9\%]+" in analyzed evidence details. what is the expression used for?

In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems