Answer the following question given this paragraph: Hydrogen peroxide is commonly sold as a 3% by volume solution for use as a disinfectant. Q: Hydrogen peroxide is commonly sold as a 3% by volume solution for use as a what? Choices: - detergent - antiseptic - surfactant - disinfectant A:
disinfectant
Answer the following question given this paragraph: We learned in the previous concept, "Scientific Explanations and Interpretations," that the average global temperature has been on the rise. Scientists know that carbon dioxide is a greenhouse gas . Greenhouse gases trap heat in the atmosphere. This leads us to a question:. Q: Where do greenhouse gases trap heat? Choices: - ground - space - altitude - atmosphere A:
atmosphere
Q: Answer the following question given this paragraph: The partial geologic time scale in Figure below shows when some of the major events in animal evolution took place. The oldest animal fossils are about 630 million years old, so presumably animals evolved around that time or somewhat earlier. The earliest animals were aquatic invertebrates. The first vertebrates evolved around 550 million years ago. By 500 million years ago, most modern phyla of animals had evolved. The first terrestrial animals evolved about 50 million years after that. Q: The earliest animals were which kind of invertebrates? Choices: - insects - mammals - dinosaurs - aquatic A:
A: aquatic
Question: Answer the following question given this paragraph: Chordates are defined by a set of four characteristics that are shared by these animals at some point during their development. In some chordates, all four traits are present in the adult animal and serve important functions. However, in many chordates, including humans, some traits are present only during the embryonic stage. After that, these traits may disappear. Q: Chordates are defined by a set of four characteristics that are shared by these animals at some point during their? Choices: - death - response - birth - development A:
Answer: development
*Question*
Answer the following question given this paragraph: Collisions between gas particles and between particles and the container walls are elastic collisions . An elastic collision is one in which there is no overall loss of kinetic energy. Kinetic energy may be transferred from one particle to another during an elastic collision, but there is no change in the total energy of the colliding particles. Q: What sorts of collisions do not result in an overall loss of kinetic energy? Choices: - soft - static - powerful - elastic A:
**Answer**
elastic
(Q).
Answer the following question given this paragraph: Q: Continental drift also promotes what speciation? Choices: - obligate - mutualistic - macroevolution - allopatric A:
(A).
allopatric