Q: What unit of power is equal to 1 joule of energy per second? Read this paragraph and choose the correct option from the provided answers: The rate at which a device changes electric current to another form of energy is called electric power . The SI unit for powerincluding electric poweris the watt. A watt equals 1 joule of energy per second. High wattages are often expressed in kilowatts, where 1 kilowatt equals 1000 watts. The power of an electric device, such as a hair dryer, can be calculated if you know the voltage of the circuit and how much current the device receives. The following equation is used:. Choices: - hertz - byte - volt - watt A:
watt

Q: What captures carbon dioxide as it is emitted by a power plant before it enters the atmosphere? Read this paragraph and choose the correct option from the provided answers: Carbon sequestration captures carbon dioxide as it is emitted by a power plant before it enters the atmosphere. The carbon dioxide is then stored in another form. Carbon is sequestered naturally by forests. Trees take in carbon dioxide for photosynthesis. Artificial methods of sequestering carbon underground are being researched. This is just one of the geoengineering methods that are being researched for reducing carbon dioxide. Choices: - chemical sequestration - oxide sequestration - nitrogen sequestration - carbon sequestration A:
carbon sequestration

Q: Q: What process of allows multicellular organisms to grow and repair themselves? Read this paragraph and choose the correct option from the provided answers: The process of cell division is how multicellular organisms grow and repair themselves. It is also how many organisms produce offspring. For many single-celled organisms, asexual reproduction is a similar process. The parent cell simply divides to form two daughter cells that are identical to the parent. Asexual reproduction produces offspring that are genetically identical to the parent, whereas sexual reproduction produces a similar, but genetically unique offspring. In sexual reproduction, meiosis produces haploid gametes that fuse during fertilization to produce a diploid zygote ( Figure below ). In other words, a child inherits half of the genetic material from each parent. Look at the family in Figure below . The children resemble their parents, but they are not identical to them. Instead, each has a unique combination of characteristics inherited from both parents. The children, of course, result from sexual reproduction. Choices: - proteins division - atom split - DNA division - cell division A:
A: cell division

Question: Q: Which process acts as a natural complement for cellular respiration? Read this paragraph and choose the correct option from the provided answers: Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis :. Choices: - glycolysis - atherosclerosis - absorption - photosynthesis A:
Answer: photosynthesis

*Question*
Q: What are the gas giants mostly made of . Read this paragraph and choose the correct option from the provided answers: The gas giants are mostly made of hydrogen and helium. These are the same elements that make up most of the Sun. Astronomers think that most of the nebula was hydrogen and helium. The inner planets lost these very light gases. Their gravity was too low to keep them and they floated away into space. The Sun and the outer planets had enough gravity to keep the hydrogen and helium. Choices: - calcium and helium - nitrogen and helium - hydrogen and carbon - hydrogen and helium A:
**Answer**
hydrogen and helium

(Question)
Q: While similar to insects, what eight-legged invertebrates lack antennae or wings? Read this paragraph and choose the correct option from the provided answers: Arachnids do not have antennae or wings. Choices: - spiders - reptiles - crustaceans - arachnids A:
(Answer)
arachnids