In Europe, most revolutionary conflicts attempted to eliminate the monarchy and to remove the influence of religion. This is because these two institutions were seen as having too much power and controlled all the different parts of public and private life. These institutions were also very corrupt and hypocritical.
The state may however limit the freedom of expression on certain grounds such as national security
They could have a fear of thunder
Answer 4 is the correct one.
Complicated instruments can possibly produce unreliable data depending on if they were used correctly, but they don't always do so.
Simple instruments like rulers can produce unreliable data if the data required is extremely precise, such as decimal measurements, but larger measurement values are typically fine.
More expensive equipment doesn't necessarily mean that it's better, it's just what the manufacturer decided to price the equipment at.
Depending on the situation, different equipment can be better, from a ruler to a caliper.