Chloroplasts
<span>On the cellular level, the reactions for photosynthesis occur in organelles called chloroplasts . Blue-green algae carry-out the photosythesis reactions in the cytoplasm.
Plz give brainliest.</span>
<span>The first generalization is that the spread of enlightenment was the beginning of the age of exploration. With the thirst for knowledge, people wanted to learn more about the world. The second generalization is that with science on the rise, people began to question the foundations of religion.</span>
1). secondary; physical and thermal and radiological
2). primary; chemical radiological
3). secondary; physical and biological