Early cities often were dangerous places to live. some of the hazards were environmental, while others were caused by human behaviors. in a brief paragraph, explain which of the hazards facing early cities you think was the most dangerous. discuss why the hazard was so dangerous, and provide a historical example of a city affected by it.

Determine which of the two measurements in each set is lesser.10°f or 20°ca. 10-fb. 20°c

70 pts answer the following questions in full sentences and paragraphs, using at least 150 words, in the essay box below. 1. which organisms are carnivores? herbivores? omnivores? 2. if the ecosystem is balanced, which populations should be the largest? the smallest? 3. imagine a group of hunters kills half of the rabbit population. how will the other organisms be affected? 4. imagine disease kills 85 percent of the wolf population. how will the other organisms be affected? 5. imagine a foreign mountain lion species is introduced into the ecosystem. how will the other organisms be affected?

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted