Abeka Science 8th Earth and Space Test 9

Metorologists use a weather radar system to predict weather

In meteorology, the farthest distance at which objects can be distinguished is called front

The elevated water level caused by a hurricane's winds is the

Lines of equal heat on a weather map are called Isobars

Sleet is precipitation that is

A downward stream of electrons that causes a single lightning bolt to make a second strike:

When the relative humidity is 100%, the air is said to be

Frost is a

A tornado forms over water

A magnetopause is the point where the solar wind pushes on Earth's magnetic field

The mesopause is the coldest part of the atmosphere?

A hydrologic cycle is the movement of water from the earth's surface, into the air and back

What is the change in the direction of winds caused by the Earth's rotation?

Albedo is the ratio of the solar radiation reflected by an object to the solar radiation

A forecast is

Numbers and symbols on a weather map that indicate observations at a particular weather station

Trade winds

Saffir-Simpson scale is used to measure

A microburst is the

A thermosphere is the outermost temperature layer of the atmosphere

The Earth is closer to the sun when

Enhanced Fujita scale is used to measure

A ceilometer is used to

Which type of air mass brings hot, dry weather?

Cosmic rays are an extremely powerful radiation heats the molecules of the ionosphere

An anemometer measures wind's

Adiabatic cooling happens when:

Greenhouse effect traps heat in the Earth's atmosphere

Cirrus clouds are high-level clouds from wispy streamers that look like feathers or hair.

Waves are the most destructive force of a hurricane

In what process does rain form through large cloud droplets hitting each other and merging

The center of a hurricane is the eyewall

What is heat transfer by electromagnetic waves?

What is the reflected light from high-altitude lightning strikes in distant thunderstorms

An upburst is a large rotating updraft in a supercell.

What instrument uses a flexible, airtight metal box to measure changes in atomospheric pressure

A tropical disturbance is a tropical low-pressure system that does not have rotating winds

Oxygen is the most abundant gas in the homoshere

What type of atomospheric conditions that limit the height to which rising air can travel

A monsoon is a wind that

Foehns are winds that travel

A cloud that is usually shaped like an almond is a

The process of liquid water turning into water vapor is called evaporation

What is a weather balloon used for

A weather vane

Hail is balls of ice that are swept into the upper layers of a thunderstorm

A frontal cyclone has reached full strength with the formation of an occluded front

A rain spout is used to measure the amount of rainfall that a location receives

What is the boundary formed when a cold air mass moves into the territory of a warm air mass?

Mature stage of a thunderstorm is marked by arrival of precipitation

What is one of the major factors that cause weather

A surface weather chart is a map that summarizes weather conditions:

What is the convection cell that exists between the equator and latitude 30°?

Which of the following is an advantage of Doppler weather radar over older radar systems?

A tropical storm is a(n)

A cumulonimbus cloud never produces heavy rains, strong winds, and sometimes hail or tornados

A rotating column on the ground is a(an)

Shallow fog is a radiation fog that is no more than

Auroras are caused by

What forms the brillant flash of a lightning bolt?

Why does a weather balloon expand as it rises?

Dew is water vapor that freezes on the ground

A radiosonde is an instrument that measures and transmits data from weather balloon to station

Which type of drought is defined by its effect on an area's groundwater, streams andlakes

What is a single updraft system in a thunderstorm?

The return stoke is the portion a lightning bolt that produces thunder

Drizzle is a form of precipitation that is

Positive cloud to ground lightning

Convection current is caused when hot air rises and cold air sinks due to a heat source

A rotating column of air that starts on the ground and is not associated with a cloud is a