Answer: I think weather front is bascially the air density, wind, and humidity.
Explanation:
Sea Floor Magnetism, Fossil Evidence, <span>Distribution of volcanoes and earthquakes on the globe </span>and Continental drift.
The most Senistive part of the chest
The pericardial cavity separates the parietal and visceral pericardium
Answer:
Weather conditions
Explanation:
Food can be limited based on location, however, scientists can control what kind of food it is. Soil can be tested and experimented on. There can be a lot of it and different kinds. Space is fought over because of territories and is limited compared to how many people and animals there are. Weather is not something that can be controlled in an experiment since it is sporadic.