Plants and animals could not live without nitrogen<span>. It is an </span>important<span> part of many cells and processes such as amino acids, proteins, and even our DNA. It is also needed to make chlorophyll in plants, which plants use in photosynthesis to make their food and energy. hope this helps!</span>
<em>global warming is caused by different gases ,, hence they are affecting the environment by increasing temperature ,, only science can solve such a big problem because during global warming all the reactions that take place are scientific..</em>
Independent Variable:<span><span>Changing the mass </span>჻ Weight force (F).</span>
Dependent Variable:
<span>The extension of the spring Δx.</span>
Answer:
The substance is chlororphyll
