False, the angle is consistently the same, yet the placement of the Earth at this angle directed at the sun is what allows the Earth to have seasons (Spring, Summer, ...) So the answer is false.
All the deserts are found at 30<span>°N because
</span><span>Hot air from the equator rises, then cools, moisture is lost, and the dry air comes down at 30 degrees north and south</span>
A scientist would use, C. Weather Balloon.
Through my research I found matching questions with similar answers:
A) macrophages
B) antigens
C) antibodies
D) lymph
The best answer to fill in the blank would be the third option C) Antibodies which in the name anti means against, so since the word anti is the same as against, its a battle between antibodies and invaders, so that's why its C).