Q: What unit are atomic radii typically measured in? Read this paragraph and choose the correct option from the provided answers: Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10 -12 meters. As an example, the internuclear distance between the two hydrogen atoms in an H 2 molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is . Choices: - sporozoans - radons - powers - picometers A:
picometers

(Question)
Q: What is applied to a rock to make it bend and flow? Read this paragraph and choose the correct option from the provided answers: The amount of stress on a rock may be greater than the rock's strength. In that case, the rock will change and deform ( Figure below ). Deep within the Earth, the pressure is very great. A rock behaves like a stretched rubber band. When the stress stops, the rock goes back to its original shape. If more stress is applied to the rock, it bends and flows. It does not return to its original shape. Near the surface, if the stress continues, the rock will fracture and break. Choices: - phosphorus - weathering - acid - stress A:
(Answer)
stress

Ques: Q: In a glass of sweet tea the sugar is known as the solute and the water is known as what? Read this paragraph and choose the correct option from the provided answers: If you're like Tanya in this picture, you prefer your iced tea sweetened with sugar. Sweetened iced tea is a solution in which solid sugar (the solute) is dissolved in cold liquid tea, which is mostly water (the solvent). When you add sugar to tea, particles of water pull apart particles of sugar. The particles of sugar spread throughout the tea, making all of it taste sweet. Choices: - pigment - solid - calcium - solvent A:
Ans: solvent

(Q).
Q: What are single-celled or colonial organisms that do not have membranebound nuclei? Read this paragraph and choose the correct option from the provided answers: Watch this video (http://openstaxcollege. org/l/rotating_DNA) that animates the three-dimensional structure of the DNA molecule shown in Figure 1.15. Some cells contain aggregates of macromolecules surrounded by membranes; these are called organelles. Organelles are small structures that exist within cells. Examples of organelles include mitochondria and chloroplasts, which carry out indispensable functions: mitochondria produce energy to power the cell, while chloroplasts enable green plants to utilize the energy in sunlight to make sugars. All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms. (This requirement is why viruses are not considered living: they are not made of cells. To make new viruses, they have to invade and hijack the reproductive mechanism of a living cell; only then can they obtain the materials they need to reproduce. ) Some organisms consist of a single cell and others are multicellular. Cells are classified as prokaryotic or eukaryotic. Prokaryotes are single-celled or colonial organisms that do not have membranebound nuclei; in contrast, the cells of eukaryotes do have membrane-bound organelles and a membrane-bound nucleus. In larger organisms, cells combine to make tissues, which are groups of similar cells carrying out similar or related functions. Organs are collections of tissues grouped together performing a common function. Organs are present not only. Choices: - arthropods - viruses - eukaryotes - prokaryotes A:
(A).
prokaryotes

Ques:Q: High explosives create shock waves that exceed the speed of sound, a phenomenon that goes by what term? Read this paragraph and choose the correct option from the provided answers: The modern day formulation of gun powder is called black powder. It is still commonly used today. Its formulation is still quite similar to what was used in 9 th century China. Black powder is considered a low explosive. It is a mixture that burns quickly, but the resulting shock wave travels at subsonic speeds. The speed at which it burns is dependent on the accessibility of oxygen atoms to the carbon source. In contrast, high explosives like nitroglycerin detonate instead of burning, creating shock waves that are supersonic (faster than the speed of sound). Choices: - light speed - ion speed - turbulence - supersonic A:

Ans:supersonic

Q: Dialysis is a treatment for failure of what organs? Read this paragraph and choose the correct option from the provided answers: Kidney failure may be treated with dialysis. Choices: - lungs - liver - spleen - kidneys A:
kidneys