Answer the following question given this paragraph: People themselves are also affected by the large size of the human population. Some people have a lot; some have very little. Many people refer to the abundance of luxury items in some people's lives as over-consumption . People in developed nations use 32 times more resources than people in the developing countries of the world. The symbol of this is CO 2 emissions, which are a waste product from fossil fuel burning. Populations that burn the most fossil fuels have a high standard of living. Q: What is a waste product from fossil fuel burning? Choices: - smog - oxidation - hydrogen gas - co2 emissions A:
co2 emissions
Answer the following question given this paragraph: There are approximately 160,000 living species and probably 70,000 extinct species of mollusks. They are typically divided into ten classes, of which two are extinct. The major classes of living mollusks include gastropods, bivalves, and cephalopods ( Figure below ). Q: The major classes of living members of this phylum include gastropods, bivalves, and cephalopods? Choices: - insects - crustaceans - invertebrates - mollusks A:
mollusks
Q: Answer the following question given this paragraph: Other specialized cells are involved in feeding. Sponges are filter feeders. They filter food out of the water as it flows through them. Sponges pump water into their body through specialized pore cells called porocytes. Q: What type of feeders are sponges? Choices: - bottom feeders - surface feeders - layer feeders - filter feeders A:
A: filter feeders
Question: Answer the following question given this paragraph: In order to explain the observed phenomenon, scientists develop a number of possible explanations, or hypotheses. A hypothesis is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena. Hypotheses are always based on evidence that can be tested by observation or experimentation. Scientific investigations are required to test hypotheses. Scientists mostly base hypotheses on prior observations or on extensions of existing scientific explanations. Q: What is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena called? Choices: - query - system - process - hypothesis A:
Answer: hypothesis
*Question*
Answer the following question given this paragraph: The ocean is becoming increasingly polluted with trash. Ocean acidification is also occurring because ocean water dissolves some of the excess carbon dioxide in the atmosphere. The more acidic water harms aquatic organisms. Q: Ocean acidification results from the ocean absorbing what gas from the atmosphere? Choices: - hydrogen - nitrogen - oxygen - carbon dioxide A:
**Answer**
carbon dioxide
(Q).
Answer the following question given this paragraph: Steam rises from the cooling towers of this nuclear power plant. The steam is only harmless water vapor. Unlike a power plant that burns fossil fuel, a nuclear power plant doesn't release pollution into the air. That's because a nuclear power plant produces power by nuclear fission, a type of nuclear reaction. Q: What is harmless water vapor, for a powerplant? Choices: - wind - plasma - fog - steam A:
(A).
steam