Answer:d. law of universal gravitation
Explanation:
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>
Science experiments can be like “measuring how heart rate is effected by music “
Are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels around the sun
im not really sure but i think the answer is C (not 100% sure)
~batmans wife
