Q: In a molecular compound, electrons are shared between atoms in which type of bond?   Read this paragraph and choose the correct option from the provided answers:  The electron loss and gain is easy to see in a reaction in which ions are formed. However, in many reactions, no such electron transfer occurs. In a molecular compound, electrons are shared between atoms in a type of bond called a covalent bond. Yet it is still common for reactions involving molecular compounds to still be classified as redox reactions.   Choices:  - Ionic  - deformation  - corrosion  - covalent   A:
covalent
(Question)
Q: What gas associated with global warming is released when limestone is heated during the production of cement?   Read this paragraph and choose the correct option from the provided answers:  Carbon dioxide is released when limestone is heated during the production of cement.   Choices:  - carbon monoxide  - hydrogen  - oxygen  - carbon dioxide   A:
(Answer)
carbon dioxide
Ques: Q: What do populations gain through births and immigration?   Read this paragraph and choose the correct option from the provided answers:  Populations gain individuals through births and immigration. They lose individuals through deaths and emigration. These factors together determine how fast a population grows.   Choices:  - humans  - Over Population  - Over Crowding  - individuals   A:
Ans: individuals
(Q).
Q: What branch of biology uses fossils to study life’s history?   Read this paragraph and choose the correct option from the provided answers:  Paleontology, another branch of biology, uses fossils to study life’s history (Figure 1.20). Zoology and botany are the study of animals and plants, respectively. Biologists can also specialize as biotechnologists, ecologists, or physiologists, to name just a few areas. This is just a small sample of the many fields that biologists can pursue. Biology is the culmination of the achievements of the natural sciences from their inception to today. Excitingly, it is the cradle of emerging sciences, such as the biology of brain activity, genetic engineering of custom organisms, and the biology of evolution that uses the laboratory tools of molecular biology to retrace the earliest stages of life on earth. A scan of news headlines—whether reporting on immunizations, a newly discovered species, sports doping, or a genetically-modified food—demonstrates the way biology is active in and important to our everyday world.   Choices:  - morphology  - entomology  - gerontology  - paleontology   A:
(A).
paleontology
Ques:Q: What is the term for a fold that arches upward?   Read this paragraph and choose the correct option from the provided answers:  An anticline is a fold that arches upward. The rocks dip away from the center of the fold ( Figure below ). The oldest rocks are found at the center of an anticline. The youngest rocks are draped over them at the top of the structure. When upward folding rocks form a circular structure, that structure is called a dome . If the top of the dome is eroded off, the oldest rocks are exposed at the center.   Choices:  - tailslide  - underlain  - tailplane  - anticline   A:

Ans:anticline
Ques: Q: Sickle cell anemia is what type of disorder?   Read this paragraph and choose the correct option from the provided answers:  Sickle-Shaped and Normal Red Blood Cells. Sickle cell anemia is an autosomal recessive disorder. The mutation that causes the disorder affects just one amino acid in a single protein, but it has serious consequences for the affected person. This photo shows the sickle shape of red blood cells in people with sickle cell anemia.   Choices:  - autosomal dominant disorder  - spontaneous mutation  - nongenetic disorder  - autosomal recessive disorder   A:
Ans:
autosomal recessive disorder