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<p>a role in the structure of <a href="page.php?w=Earth%27s_atmosphere">Earth's atmosphere</a>, its <a href="page.php?w=oceans">oceans</a>, and its <a href="page.php?w=Earth%27s_mantle">mantle</a>. Discrete convective cells in the atmosphere can be identified by <a href="page.php?w=clouds">clouds</a>, with stronger convection resulting in <a href="page.php?w=thunderstorm">thunderstorm</a>s. Natural convection also plays a role in <a href="page.php?w=stellar_physics">stellar physics</a>. Convection is often categorised or described by the main effect</p><p>
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