Auroras are caused by electrically charged particles in the
How much energy radiated by the sun reaches Earth?
Energy transferred as electromagnetic waves is called
Thermal energy transferred by circulation of a liquid or gas is called
The process by which gases in the atmosphere absorb thermal energy and radiate it back to Earth is called
What causes wind?
What causes differences in air pressure around the Earth?
Global winds that blow from west to east are called
Narrow belts of wind that can reach 400 km/h are called
Carbon dioxide, dust and smoke from forest fires that are put directly into the air are called
Which of the following is a secondary pollutant?
Air temperature changes as altitude increases because of
Radiation is the transfer of energy
Thermal conduction is the transfer of energy
Convection is the transfer of energy
Winds that blow from 30o to 60o latitude in both hemispheres are called
Winds that blow from the poles to 60o latitude in both hemispheres are called
Which is an example of a primary pollutant?
What is the greatest problem created by the ozone hole?
A vehicle that runs on both electricity and gasoline is called a
Wind occurs because air tends to move from regions of higher to lower
Air pressure decreases as what increases?
What is the atmosphere that surrounds Earth made of?
What is rain, sleet or snow that has lots of acid in it called?
What is the main problem caused by the ozone hole?
What explains the fact that a pan on a stove gets hot when it is above a flame?
Which of the following shows the composition of Earth's atmosphere?
Which is an example of a local wind?
How much of the sun's energy is scattered and reflected by clouds and air?
Which of the following is a primary pollutant?
What generally causes differences in air pressure on Earth?
What role does runoff play in the water cycle?
What happens when air reaches its dew point?
Which of the following describes an air mass with the symbol cT?
How do winds behave in a cyclone?
What kind of weather would an anticyclone likely bring?
The most powerful storms on earth are
What kind of weather would a cumulonimbus clouds likely bring?
A tornado is dangerous mostly because of its
Finding a high place to wait is a safety measure during a
Which information can you get from a weather map?
Isobars help meteorologists by
Lightning is an electric discharge between a positively charged area and
A maritime polar air mass that forms over the North Pacific Ocean brings what kind of weather to the Pacific Coast?
A windsock does NOT
Isobars indicate
What causes changes in weather?
How does a hurricane begin?
What causes lightning?
What tool measures air pressure?
What is a cloud made of?
Which of the following is the cause of the change of seasons?
Prevailing winds that travel to a region across a large body of water would probably make the region's climate
What causes soil in rain forests to be nutrient poor?
Which of the following describes soils in deciduous forests?
What causes the big temperature change from day to night in the temperate desert?
Which of the following is NOT a cause of an increase in carbon dioxide in the atmosphere?
Which of the following biomes is always warm and wet?
Prevailing winds affect a region's climate by
Which human activity is NOT thought to be related to global warming?
The main reason that winter is colder in Washington, D.C. than in southern Texas is that
What does the geologic record indicate about the Earth's climate?
An important factor for plant growth in the tropical savanna is
Why does the Equator experience about the same temperatures year round?
Which of the following is an example of a microclimate?
The Milankovitch theory explains
If an asteriod of 1 km or larger hit the Earth,
Wind will generally carry the most moisture when it comes from
The most abundant plants in the taiga are
Which human activity is thought to be most responsible for global warming?
Seasons are caused by
How do prevailing winds that travel across large bodies of water affect the climate?
What helps plants grow in the tropical savanna?
Which of the following helps conifers grow well in the taiga biome?
Which of the following is a microclimate?