Which of the following observations indicates that conditions on mars may have been suitable for life in the past? mars has two small moons. there are very large extinct volcanoes on mars. there are dried-up riverbeds on mars. there is a very deep and long canyon that extends across mars. mars has polar caps made of "dry ice."

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 statement about factories in the industrial revolution is not true? a) some of the first advances were in textile mills b) spinning machines used water power c) water power was replaced by steam power d) coal was imported to english factories for power answer d) coal was imported to english factories for power

Which of the following is the major contributing factor in all landslides? stream erosion precipitation earthquakes gravity sedimentary layers oriented parallel to the slope