Ques: Answer the following question given this paragraph: A binary molecular compound is a molecular compound that is composed of two elements. In general, the elements that combine to form binary molecular compounds are both nonmetals. This contrasts with ionic compounds, which usually involve bonds between metal ions and nonmetal ions. Because ionic charges cannot be used to name these compounds or to write their formulas, a different naming system must be used for molecular compounds. Another difference between ionic and molecular compounds is that two nonmetal atoms will frequently combine with one another in a variety of ratios. For example, nitrogen and oxygen combine to make several binary compounds, including NO, NO 2 , and N 2 O. Obviously they can't all be called nitrogen oxide! How would someone know which one you were talking about? Each of the three compounds has very different properties and reactivity. A system to distinguish between compounds such as these is necessary. Q: A binary molecular compound is a molecular compound that is composed of what? Choices: - two atoms - four atoms - four elements - two elements A:
Ans: two elements

Ques: Answer the following question given this paragraph: The energy that the object gains or loses when traveling through a potential difference is supplied (or absorbed) by the electric field --- there is nothing else there. Therefore, it follows that electric fields contain energy . Q: Where does an object gain or lose it's energy to during travel through a potential difference? Choices: - particle field - magnetic field - wave field - electric field A:
Ans: electric field

Ques: Answer the following question given this paragraph: Hurricanes move with the prevailing winds. In the Northern Hemisphere, they originate in the trade winds and are blown to the west. When they reach the westerlies, they switch direction. So they travel toward the north or northeast. You can look at a map of hurricane tracks to see this happen ( Figure below ). Hurricanes may cover 800 km (500 miles) in one day. Q: What weather events move with the prevailing winds and originate in the trade winds in the northern hemisphere? Choices: - tsunamis - earthquakes - droughts - hurricanes A:
Ans: hurricanes

Ques: Answer the following question given this paragraph: Heavily vegetated lands are less likely to experience flooding. Plants slow down water as it runs over the land, giving it time to enter the ground. If the ground is too wet to absorb more water, plants still slow the water's passage. Slower water keeps all the water from entering the stream at once. Wetlands play a key role in minimizing the impacts of floods. Wetlands act as a buffer between land and high water levels. Flooding is often more severe in areas that have been recently logged. Q: Heavily vegetated lands are less likely to experience what? Choices: - expansion - drought - rains - flooding A:
Ans:
flooding