Answer the following question given this paragraph: Observations can happen on many scales. You can use a microscope to observe tiny things. You can use a telescope to observe distant things in space. To learn about the effects of climate change, you could observe Earth's surface. How would you make observations of Earth's surface? You could do this from the land surface or from space. Many important observations are made by orbiting satellites. These satellites have a bird's eye view of how the planet is changing ( Figure below ). Q: What man-made devices in space are used to observe the earth's surface? Choices: - crystals - telescopes - sensors - satellites A:
satellites
Answer the following question given this paragraph: Dwarf galaxies are small galaxies containing "only" a few million to a few billion stars. Most dwarf galaxies are irregular in shape. However, there are also dwarf elliptical galaxies and dwarf spiral galaxies . Dwarf galaxies are the most common type in the Universe. However, because they are relatively small and dim, we don't see as many dwarf galaxies as we do their full-sized cousins. Q: Smaller sized galaxies are known as what? Choices: - nebula - black holes - constellations - dwarf galaxies A:
dwarf galaxies
Q: Answer the following question given this paragraph: There is a predictable amount of solute that can be dissolved at a specific temperature. Q: There is a predictable amount of solute that can be dissolved at what? Choices: - flat rate - light speed - room temperature - specific temperature A:
A: specific temperature
Question: Answer the following question given this paragraph: Immunity can also be caused by vaccination. Vaccination is the process of exposing a person to a pathogen on purpose in order to develop immunity. In vaccination, a modified pathogen is usually injected under the skin by a shot. Only part of the pathogen is injected, or a weak or dead pathogen is used. It sounds dangerous, but the shot prepares your body for fighting the pathogen without causing the actual illness. Vaccination triggers an immune response against the injected antigen. The body prepares "memory" cells for use at a later time, in case the antigen is ever encountered again. Essentially, a vaccine imitates an infection, triggering an immune response, without making a person sick. Q: What is the term for the process of exposing a person to a pathogen on purpose in order to develop immunity? Choices: - evacuation - ramping - priming - vaccination A:
Answer: vaccination
*Question*
Answer the following question given this paragraph: How fast or slow something moves is its speed . Speed determines how far something travels in a given amount of time. The SI unit for speed is meters per second (m/s). Speed may be constant, but often it varies from moment to moment. Q: What unit of measurement determines how far something travels in a given amount of time? Choices: - distance - volume - density - speed A:
**Answer**
speed
Q: Answer the following question given this paragraph: 47.2 The Importance of Biodiversity to Human Life Humans use many compounds that were first discovered or derived from living organisms as medicines: secondary plant compounds, animal toxins, and antibiotics produced by bacteria and fungi. More medicines are expected to be discovered in nature. Loss of biodiversity will impact the number of pharmaceuticals available to humans. Crop diversity is a requirement for food security, and it is being lost. The loss of wild relatives to crops also threatens breeders' abilities to create new varieties. Ecosystems provide ecosystem services that support human agriculture: pollination, nutrient cycling, pest control, and soil development and maintenance. Loss of biodiversity threatens these ecosystem services and risks making food production more expensive or impossible. Wild food sources are mainly aquatic, but few are being managed for sustainability. Fisheries' ability to provide protein to human populations is threatened when extinction occurs. Biodiversity may provide important psychological benefits to humans. Additionally, there are moral arguments for the maintenance of biodiversity. Q: Humans use many compounds that were first discovered or derived from living organisms as medicines: secondary plant compounds, animal toxins, and antibiotics produced by these? Choices: - bacteria and tumors - molecules and fungi - tumors and fungi - bacteria and fungi A:
A: bacteria and fungi