Answers to Assignment #3
123. As altitude increases, air pressure _____ decreases _________.
124. Air Pressure or Barometric Pressure is caused by weight of the air (Barometer measures Air Pressure.)
125. As altitude increases, the amount of water vapor ___ decreases ____________.
126. The greatest amount of water vapor is found in the ___ troposphere______________ (layer of atmosphere.)
127. The greatest atmospheric pressure occurs in the ___ troposphere _____________ (layer of the atmosphere.)
128. As temperature increases, density of air ____decreases____________.
129. As temperature increases, air pressure ______ decreases__________________.
130. As moisture content increases (humidity), air pressure ___ decreases______________.
131. AS temperature increases, the moisture holding capacity of the air ___ increases _____________.
132. High pressure systems are associated with __ fair _________ weather conditions.
133. Low pressure systems are associated with __ rainy ________ weather conditions.
134. In Low pressure systems winds blow ___ inward__ and __ counterclockwise ________ (L.I.C.C.)
135. In high pressure systems winds blow ___ outward ________ and _____ clockwise _______ (H.O.C.)
136. At the center of a low pressure center, air __ rises ________ and ___ converges ________ (Low-CO)
137. At the center of a high pressure center air ___ sinks _________ and ___ diverges _________ (High-DI)
138. The highest pressure is ___ cool____ and ___ dry _______. Air pressure is lowest when it is ___ warm
___
and ________ wet____.
139. Winds blow due to difference in ________ air pressure________.
140. The more closely spaced the isobars the _____ faster _________ the wind speed.
141. Wind blows from regions of _____ high ______ to _____ low _________ pressure.
142. Winds are named for the direction they are ___________ coming FROM____________.
143. Weather patterns (in the U.S.) move from _______ west _____ to _________ east ______, because we are
located in the ______ prevailing westerlies _____ planetary wind belt.
144. Cold Front (
Warm Front
145. Fronts are associated with _____ low ______ pressure. Clouds and precipitation.
146. A front is a boundary between 2 air masses.
147. When warm air rises, it _______expands___, _______cools____ and _________ condenses _____. (R.E.C.C.)
148. In order for clouds to form, the air needs to be _____ saturated____ and ___ condensation nuclei _____ must
be available.
149. The closer the air temperature is to the dew point the _______ higher ______ the relative humidity and the
greater the chance for __________precipitation ______.
150. Air mass characteristics (temp. moisture) are determined by the __________ source region ________.
151. The mT air mass that affect NY’s weather is _______ moist _______ and _______ warm_____ and forms over
the ________ Gulf of Mexico_____.
152. cP air masses are _______ dry _______ and _____ cold ____ and form over _____ Central Canada_________.
153. Relative humidity – a percentage of the amount of moisture in the air to the maximum amount it can hold.
154. Saturation – When the air is holding the _________ maximum _____ amount of water it can hold.
155. Dew Point temperature – Temperature at which ______ condensation_______ occurs (air is saturated.)
156. When the air temperature equals the dew point temperature relative humidity is _____ 100% ________.
157. When the air temperature approaches the dew point temperature relative humidity is ____ very high______.
158. Precipitation ______ decreases_____ pollution and ________ increases ___ atmospheric transparency.
159. Dry, hot and windy conditions _____ increase_______ the rate of evaporation.
160. Tornadoes – short lived (a minute or less) small in size- get in the basement!
161. Hurricanes – Low Pressure systems- last days, very large, high winds, - evacuate – stock pile food/ water,
batteries, etc.
162. Hurricanes get their energy from warm ocean water mT air mass, die over land, know hurricane track.
266. Undisturbed strata – bottom layer is _____ oldest_________, top layer is ______ youngest ________.
267. Intrusions are faults are ___ younger___________ than the rock they effect.
268. An __unconformity ___________ is a buried erosional surface. Means missing time/gap in rock record.
269. An arid landscape has _____ steep _________ slopes with _____ high________ angles.
270. A humid landscape has ____ gentle __________ slopes with ____ low _________ angles.
271. A landscape is determines by the climate, bedrock, and geologic structures.
272. Stream Drainage patterns – ___ Radial ___________ pattern for MTs – dendritic pattern for _____ downhill
_____, Plateaus have a rectangular or ____ trellis__________ pattern.
273. Uranium – 238 dates ___ old ___________ rocks.
274. Carbon – 14 dates ___ recent ___________, once living objects.
275. The half-life of a radioactive element _____ cannot _________ be changed.
276. The half-life of an element is the amount of time it takes for __ half_ of the parent atoms to decay into daughter
atoms.
277. Half Life never changes NO Matter What! Radioactive elements decay forever!
278. To be a useful index fossil, as species must have lived for a __ Narrow______ period of time over a
___ Widespread __________ geographic area.
279. Layers of volcanic ash are good time markers because they are deposited ____ quickly __________ over a
Widespread __________ area.
280. In NY, fossils of corals reveal VY was once under a warm shallow sea (NY was near the equator.)
281. Geologic time is divided into units based on ______ fossil ________ evidence.
282. In general, life has evolved from the ____ simple _________ to the _____ more complex _________.