Q: What types of flat maps show users changes in land elevation? Read this paragraph and choose the correct option from the provided answers: Topographic maps are flat maps that show the three-dimensional surface features of an area. Topographic maps help users see the how the land changes in elevation. Choices: - surveyor maps - atlases - elliptical maps - topographic maps A:
topographic maps

(Question)
Q: What noble gas follows hydrogen on the periodic table? Read this paragraph and choose the correct option from the provided answers: Following hydrogen is the noble gas helium, which has an atomic number of 2. The helium atom contains two protons and two electrons. The first electron has the same four quantum numbers as the hydrogen atom electron (n = 1, l = 0, ml = 0, m s = + 1 ). The second electron also goes into the 1s orbital and fills that orbital. The second electron 2 has the same n, l, and ml quantum numbers, but must have the opposite spin quantum number, m s = 1 . This is in 2 accord with the Pauli exclusion principle: No two electrons in the same atom can have the same set of four quantum numbers. For orbital diagrams, this means two arrows go in each box (representing two electrons in each orbital). Choices: - nitrogen - oxygen - halogen - helium A:
(Answer)
helium

Ques: Q: Gain or loss of what causes an atom to become a negatively or positively charged ion? Read this paragraph and choose the correct option from the provided answers: The girl pictured above became negatively charged because electrons flowed from the van de Graaff generator to her. Whenever electrons are transferred between objects, neutral matter becomes charged. This occurs even with individual atoms. Atoms are neutral in electric charge because they have the same number of negative electrons as positive protons. However, if atoms lose or gain electrons, they become charged particles called ions. You can see how this happens in the Figure below . When an atom loses electrons, it becomes a positively charged ion, or cation. When an atom gains electrons, it becomes a negative charged ion, or anion. Choices: - protons - neutrons - nucleus - electrons A:
Ans: electrons

(Q).
Q: There is always a slightly negative pressure within what cavity, helping keep the airways of the lungs open? Read this paragraph and choose the correct option from the provided answers: There is always a slightly negative pressure within the thoracic cavity, which aids in keeping the airways of the lungs open. During inhalation, volume increases as a result of contraction of the diaphragm, and pressure decreases (according to Boyle's Law). This decrease of pressure in the thoracic cavity relative to the environment makes the cavity less than the atmosphere (Figure 39.16a). Because of this drop in pressure, air rushes into the respiratory passages. To increase the volume of the lungs, the chest wall expands. This results from the contraction of the intercostal muscles, the muscles that are connected to the rib cage. Lung volume expands because the diaphragm contracts and the intercostals muscles contract, thus expanding the thoracic cavity. This increase in the volume of the thoracic cavity lowers pressure compared to the atmosphere, so air rushes into the lungs, thus increasing its volume. The resulting increase in volume is largely attributed to an increase in alveolar space, because the bronchioles and bronchi are stiff structures that do not change in size. Choices: - anal - cervical - spinal - thoracic A:
(A).
thoracic

Ques:Q: What kind of anaerobe is yeast? Read this paragraph and choose the correct option from the provided answers: Yeast is a facultative anaerobe. This means that alcohol fermentation takes place only if: a. the temperature is close to 37C b. the atmosphere does not contain oxygen c. sugar is provided to the cells d. light is provided to the cells. Choices: - mutualistic - obligate - aerobic - facultative A:

Ans:facultative

Ques: Q: What natural process allows water to return again to the earth's surface? Read this paragraph and choose the correct option from the provided answers: Condensation creates precipitation. Precipitation includes rain, snow, hail, and sleet. The precipitation allows the water to return again to the Earth's surface. Choices: - erosion - currents - wind - precipitation A:
Ans:
precipitation