Nicolaus Copernicus was a Renaissance mathematician and astronomer. He was the first to formulate a comprehensive heliocentric cosmology with the Sun, instead of the Earth, as the center of the Universe. The distance of the planets from the sun was in direct relationship to the size of their orbits.
As per questions,
★ What to do before a volcanic eruption?
Ans • Pack up some belongings especially radio, torch, some extra batteries, if possible then some dry eatables.
• Run out of the house with limited supplies and go to higher altitude areas like in mountains.
• Take some essential pain reducer medicines.
★ What to do during a volcanic eruption?
Ans: • Listen for the emergency evacuation orders as per given by officials.
• Protect yourself from falling ash.
• Use goggles to protect your eyes.
Answer:
plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
Answer:
Depending upon the country and community in which you live, the authority exercised by elected officials is defined by formal rules and informal norms of behavior that apply in that jurisdiction. Authority is the willing compliance, almost automatic, with dictates from figures to whom we grant that authority. The formal rules limiting government officials’ authority should protect citizens from abuses of that authority but informal norms may sometimes allow elected officials to get away with actions that violate those rules or, at least, bend them to their own purposes.
