Q: What connects the fetus to the placenta? Read this paragraph and choose the correct option from the provided answers: The fetus is connected to the placenta through the umbilical cord. Choices: - fallopian tube - microbial cord - eustachian tube - umbilical cord A:
umbilical cord

(Question)
Q: Ice cubes in cola cause the cola to lose what? Read this paragraph and choose the correct option from the provided answers: Simon Cousins. Ice cubes in cola cause the cola to lose thermal energy . CC BY 2.0. Choices: - mechanical energy - kinetic energy - gravity - thermal energy A:
(Answer)
thermal energy

Ques: Q: What aspect of beryllium allows it to absorb x-rays? Read this paragraph and choose the correct option from the provided answers: TiCl4(l) + 2Mg(s) Ti(s) + 2MgCl2(s) The only other alkaline earth that is widely used as the metal is beryllium, which is extremely toxic. Ingestion of beryllium or exposure to beryllium-containing dust causes a syndrome called berylliosis, characterized by severe inflammation of the respiratory tract or other tissues. A small percentage of beryllium dramatically increases the strength of copper or nickel alloys, which are used in nonmagnetic, nonsparking tools (such as wrenches and screwdrivers), camera springs, and electrical contacts. The low atomic number of beryllium gives it a very low tendency to absorb x-rays and makes it uniquely suited for applications involving radioactivity. Both elemental Be and BeO, which is a high-temperature ceramic, are used in nuclear reactors, and the windows on all x-ray tubes and sources are made of beryllium foil. Millions of tons of calcium compounds are used every year. As discussed in earlier chapters, CaCl 2 is used as "road salt" to lower the freezing point of water on roads in cold temperatures. In addition, CaCO 3 is a. Choices: - magnetism - relative atomic number - high atomic number - low atomic number A:
Ans: low atomic number

(Q).
Q: Kepler's laws relate to the motion of what? Read this paragraph and choose the correct option from the provided answers: The system is isolated from other masses. This allows us to neglect any small effects due to outside masses. The conditions are satisfied, to good approximation, by Earth's satellites (including the Moon), by objects orbiting the Sun, and by the satellites of other planets. Historically, planets were studied first, and there is a classical set of three laws, called Kepler's laws of planetary motion, that describe the orbits of all bodies satisfying the two previous conditions (not just planets in our solar system). These descriptive laws are named for the German astronomer Johannes Kepler (15711630), who devised them after careful study (over some 20 years) of a large amount of meticulously recorded observations of planetary motion done by Tycho Brahe (15461601). Such careful collection and detailed recording of methods and data are hallmarks of good science. Data constitute the evidence from which new interpretations and meanings can be constructed. Choices: - continents - oceans - the sun - planets A:
(A).
planets

Ques:Q: What theory says stresses build on both sides of a fault? Read this paragraph and choose the correct option from the provided answers: Elastic rebound theory. Stresses build on both sides of a fault. The rocks deform plastically as seen in Time 2. When the stresses become too great, the rocks return to their original shape. To do this, the rocks move, as seen in Time 3. This movement releases energy, creating an earthquake. Choices: - Geiger theory - seismic load theory - Big Bang theory - elastic rebound theory A:

Ans:elastic rebound theory

Q: Momentum is a vector quantity that has the same direction as what? Read this paragraph and choose the correct option from the provided answers: Momentum is a vector quantity that has the same direction as the velocity of the object. Choices: - object energy - initial speed - inertia - object ' s velocity A:
object ' s velocity