<section><h2>Topic 1d quiz</h2><p><p>This quiz will go back over the ideas in Topic 1d - Unravelling the complex structure of the Atmosphere</p></p></section><section><h2>What makes up 78% of the Earth’s atmosphere?</h2></section><section><h3>Where is the ozone layer located?</h3></section><section><h3>What is the stratosphere controlled by?</h3></section><section></section><section></section>