Answer the following question given this paragraph: When Earth first formed, it was a fiery hot, barren ball. It had no oceans or atmosphere. Rivers of melted rock flowed over its surface. Gradually, the planet cooled and formed a solid crust. Gases from volcanoes formed an atmosphere, although it contained only a trace of oxygen. As the planet continued to cool, clouds formed and rain fell. Rainwater helped form oceans. The ancient atmosphere and oceans would be toxic to modern life, but they set the stage for life to begin. Q: What did volcanic gases help to form on earth? Choices: - water - plants - rocks - atmosphere A:
atmosphere
Answer the following question given this paragraph: Ionic crystals are composed of alternating positive and negative ions. Q: What are composed of alternating positive and negative ions? Choices: - magnetic crystals - polar bonds - radioactive substances - ionic crystals A:
ionic crystals
Q: Answer the following question given this paragraph: Longer chains of monosaccharides are referred to as polysaccharides . Starch, glycogen, and cellulose are three extremely common polysaccharides made entirely out of glucose molecules. The differences lie in the types of bonds between the glucose units and the extent of branching in the carbohydrate chain. Starch is found in plants and is consumed as part of our diet. Glycogen is made by the body and is a storage form of glucose for when the cells need extra energy. Cellulose is another long-chain polysaccharide found in plants. Unlike starch and glycogen, the human body cannot break cellulose down into molecules of glucose. Although cellulose does not have any nutritional value in terms of calories, it is a major component of dietary fiber, which has other digestive benefits. Q: What is the term for longer chains of monosaccharides ? Choices: - proteins - hydrocarbons - oligosaccharides - polysaccharides A:
A: polysaccharides
Question: Answer the following question given this paragraph: Imagine walking in the forest in Figure below . The towering trees have been growing here for hundreds of years. It may seem as though the forest has been there forever. But no ecosystem is truly static. The numbers and types of species in most ecosystems change to some degree through time. This is called ecological succession. Important cases of ecological succession are primary succession and secondary succession. Q: The numbers and types of species in most ecosystems change to some degree through time and this is called? Choices: - physiological succession - continuous succession - environmental succession - ecological succession A:
Answer: ecological succession
*Question*
Answer the following question given this paragraph: Partly movable joints allow only a little movement. Your backbone has partly movable joints between the vertebrae ( Figure below ). Q: Are the joints between the vertebrae contained in your backbone fully movable, partially movable, or unmovable? Choices: - none of these - unmovable - fully movable - partially movable A:
**Answer**
partially movable
Q: Answer the following question given this paragraph: Since Jupiter is a gas giant, could a spacecraft land on its surface? The answer is no. There is no solid surface at all! Jupiter is made mostly of hydrogen, with some helium, and small amounts of other elements. The outer layers of the planet are gas. Deeper within the planet, the intense pressure condenses the gases into a liquid. Jupiter may have a small rocky core at its center. Q: What type of planet is jupiter? Choices: - a noble gas - a phantom - a red dwarf - a gas giant A:
A: a gas giant