In many areas "atoll" clouds (clouds of vertical development) are produced over small islands. These are the result of ______.
A.rising air currents produced by the warm islands
B.warm air from the sea rising over higher land areas
C.cool land air mixing with warm sea air
D.descending air over the islands
第1题:
Clouds with the prefix“nimbo”in their name ______.
A.are sheet or layer clouds
B.have undergone great vertical development
C.are middle or high altitude clouds
D.are rain clouds
第2题:
What is the first visible indication of the presence of a tropical cyclone or hurricane ________.
A.Stratocumulus clouds or strange birds
B.Rain and increasing winds
C.An exceptionally long swell
D.Dark clouds and the“bar”of the storm
第3题:
High clouds, composed of small white flakes or scaly globular masses, and often banded together to form a mackerel sky, would be classified as ______.
A.cirrus
B.cirrocumulus
C.altostratus
D.Cumulonimbus
第4题:
第5题:
are sheet or layer clouds
have undergone great vertical development
are middle or high altitude clouds
are rain clouds
第6题:
high clouds
middle clouds
low clouds
vertical development clouds
第7题:
as a mass of warm,humid air rises into the atmosphere and cools,condensing moisture into small droplets
as winds blow across bodies of water,the sun causes the moisture to be absorbed and move upward forming clouds
dry air compresses moisture from the atmosphere into clouds
when the relative humidity of the atmosphere is low
第8题:
size
moisture content
altitude and how they were formed
location in a front
第9题:
large cumulonimbus (thunderclouds) building up
high cirrus clouds gradually changing to cirrostratus and then to altostratus
fog caused by the warm air passing over the cooler water
low dark clouds accompanied by intermittent rain
第10题:
trade winds are harmful to the low clouds.
deep clouds are helpful to cool the earth.
global warming can result in more low clouds.
global warming can destroy the form of atmosphere.
第11题:
Cumulus clouds lined up in rows extending in a northeast to southwest direction
High altostratus clouds in the morning hours
Cirrostratus clouds lined up in rows extending in a northeast to southwest direction
Cirrostratus clouds lined up in rows extending in a north to south direction
第12题:
disappearing
disappeared
diving
dived
第13题:
Cumulus clouds that have undergone vertical development and have become cumulonimbus in form,indicate ______.
A.clearing weather
B.that a warm front has passed
C.probable thunderstorm activity
D.an approaching hurricane or typhoon
第14题:
Altocumulus clouds are defined as______.
A.high clouds
B.middle clouds
C.low clouds
D.vertical development clouds
第15题:
Many of the lights on this coast are placed so high as to be frequently obscured by______.
A.power
B.tower
C.cover
D.low clouds
第16题:
第17题:
rising air currents produced by the warm islands
warm air from the sea rising over higher land areas
cool land air mixing with warm sea air
descending air over the islands
第18题:
cirrus
cirrocumulus
altostratus
cumulonimbus
第19题:
Stratocumulus clouds or strange birds
Rain and increasing winds
An exceptionally long swell
Dark clouds and the“bar”of the storm
第20题:
clearing weather
that a warm front has passed
probable thunderstorm activity
an approaching hurricane or typhoon
第21题:
absorbed by the clouds in the lower atmosphere
reflected by the gases in the upper atmosphere
lost in the upper and lower atmosphere
used to evaporate water from the oceans and lakes
第22题:
low-level clouds tend to warm the ocean.
more cloud cover means a warmer world.
the warming of ocean is a threat to the low-level clouds.
the Pacific Ocean has more low-level clouds than before.
第23题:
cirrus
cirrostratus
altostratus
cirrocumulus