D.hot air rising and cooler air falling. A is example of radiation or conduction. B is example of radiation. C is example of conduction. D is example of convection
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<span>Coal is a sedimentary rock made almost entirely of plant material and other organic
deposits that have been buried for millions of years under elevated
conditions of heat and pressure. </span>
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Answer:
a
Explanation:
Cells are the functional units of life, this means that all living organisms are made up of cells. In multicellular organisms, cells are organized into complex structures such as tissues, organs and systems. A tissue is made up of similar cells which have the similar function. An organ is made up of several tissues while a system is made up of related organs. Example of a tissue is blood which is made up of similar cells such as red blood cells and white blood cells.
<span>ladograms are tree-like diagrams used to show relationships between different organisms. The node represents the end of the ancestral taxon under consideration, the stems and the species that split from the ancestor.</span>
