3) when the temperature of a blackbody increases from 900 k to 2300 k, by what factor does the total power of the electromagnetic radiation per-unit- area increase?

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

What gigantic island is primarily in the arctic circle?

Need this asap! geography 10 points! will mark brainliest! (this is a webquest < i'm bad at these) answer each question below thoroughly (3-4 sentences each): 1) has international aid done more harm than good for the people of africa? 2) what are the benefits of international aid? 3) what are the problems with international aid? 4) what are the alternatives to international aid? 5) what do you think is the best approach to offer international aid? whoever answer accordingly will get brainliest, youuu humans!