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Are carbon monoxide levels usually higher in cold weather?
true
Is it true that a moving cold front moves cold air over warm air?
No, cold air displaces warm air from the bottom because it's denser.
What are anti-cyclones?
An anticyclone, also known as a 'high' can be identified on a weather chart as an often large area of widely spaced isobars, where pressure is higher than surrounding areas. In the Northern Hemisphere winds blow in a clockwise direction around high pressure. The highest pressure occurs at the centre and is known as the 'high pressure centre'. Anticyclones can bring warm and sunny weather in summer, but cold and foggy weather in winter.A depression, also known as a 'low' can be recognised on a weather chart by an area of closely spaced isobars, often in a roughly circular shape, where pressure is lower than surrounding areas. They are often accompanied by fronts. In the Northern Hemisphere winds blow around depressions in an anticlockwise direction. The lowest pressure occurs at the middle of a depression, this is known as the 'low pressure centre'. Depressions are often associated with strong winds and heavy rain and are nearly always accompanied by fronts.Troughs Troughs are elongated extensions of areas of low pressure. They bring similar weather to that associated with depressions. Ridges Ridges are elongated extensions of areas of high pressure. They bring similar weather to that associated with anticyclones. Col A col can be identified as an area of slack pressure between two anticyclones and two depressions. The following diagram summarises the appearance on a weather chart of the main types of pressure systems. Cold fronts and warm fronts Cold fronts can be identified on weather charts as bold lines with triangles. These are blue when displayed on colour charts. The points of the triangle indicate the direction in which the front is moving. A cold front indicates a change in air mass, where warmer air is being replaced by colder air. They often bring short spells of heavy rainfall in the form of showers and squally winds, and are accompanied by a decrease in temperature, a veer in wind direction and a change to brighter showery conditions. Warm fronts can be identified on weather charts as bold lines with semi-circles or humps. These are coloured red when displayed on colour charts. The direction of the humps indicates the direction in which the front is moving. A warm front indicates a change from a colder to a warmer air mass. They often bring spells of prolonged and sometimes heavy rainfall, with strong winds. Occluded fronts Occluded fronts can be identified on weather charts as bold lines with sets of triangles and semi-circles. These are coloured purple on coloured weather charts. The direction in which the symbols face indicates the direction in which the front is travelling. Occlusions are formed when the cold front overtakes the warm front, therefore they have similar characteristics to a cold front, but less intense. Warm Sector The warm sector of a depression is located behind the warm front and ahead of the cold front. It often brings mild temperatures but the weather can be overcast with drizzle.
True or False The increase or decrease of greenhouse gases in the atmosphere affect climate and weather the world over?
True. The increase or decrease of greenhouse gases does affect the atmosphere. This includes globally cold or hot temperatures, along with shifts in the climate and weather the world over.
Weather maps are idea models that allow scientists to predict weather patterns true or false?
true
Is the Mexican myth about getting sick from sweating in cold weather true?
yes, the Mexican myth about getting sick by sweating in cold weather is true!
Is the air behind a cold front cold and dry?
true
Carbon monoxide levels are usually highest during cold weather true or false?
true
Are carbon monoxide levels usually higher in cold weather?
true
Are monoxide levels usually highest during cold weather?
true
True or false Deploying service members do not acclimate to hot weather nearly as well as they adapt to cold weather?
false
Is this true clouds of cold fronts are usually cumuli-form?
Yes they are, due to the abundance of rising motion associated with cold fronts.
Does being wet cause a cold?
No, some people believe this, but it is not a true fact. You have to be infected with the cold virus to get a cold. Being wet is uncomfortable in cold weather but it does not cause you to be infected with the virus.
Are Carbon monoxide levels are highest during cold weather?
The carbon monoxide levels in your home may be at their highest during cold weather for a couple of reasons. First, if the weather is cold you are likely running the heater, and gas- or oil-fired heaters can produce carbon monoxide. Second, you probably keep the windows and doors closed as much as possible, trapping carbon monoxide inside the house. The carbon monoxide emitted by a car may increase when it is cold because the engine burns fuel less efficiently when the engine is cold.
Is it true that a moving cold front moves cold air over warm air?
No, cold air displaces warm air from the bottom because it's denser.
Do cold temperatures have a vasoconstricting effect on blood vessels?
Yes. Increased body temperature that is associated with a cold can cause the vasodilation effect and heart rate increases
Is it true the border between 2 air masses may be either cold or warm fronts?
Yes. If a warm air mass moves into a cold air mass it creates a warm front. When the opposite happens it forms a cold front.
