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What are examples of variable gases?
Variable gases in the atmosphere include water vapor, carbon dioxide, methane, and ozone. These gases can fluctuate in concentration based on factors such as weather patterns, human activities, and natural processes.
Why are variable gases important?
Variable gases, such as carbon dioxide and water vapor, are important because they play a crucial role in regulating Earth's climate by trapping heat in the atmosphere. These gases are known as greenhouse gases and help maintain the planet's temperature within a range that supports life. However, human activities have led to an increase in these gases, contributing to global warming and climate change.
What substances is the atmosphere made of?
The Earth's atmosphere is composed of primarily nitrogen (about 78%) and oxygen (about 21%). Other gases such as argon, carbon dioxide, and trace amounts of other gases make up the remaining composition. Water vapor is also present in variable amounts.
What type of variable depends on the controlled variable?
The variable that depends on the controlled variable is typically the dependent variable. This variable is measured or observed to see how it responds to changes in the controlled variable during an experiment or study.
Which variable in an investigation is the variable that is deliberately manipulated?
The manipulated variable in an investigation is called the independent variable. It is the variable that is intentionally changed or controlled by the researcher to observe its effect on the dependent variable.
