Which of the following is considered a life-threatening environmental emergency?

Step 1: Define the Problem

Identify the key components of the question that need to be addressed:

• Determine which environmental emergencies are considered life-threatening.

Step 2: Break Down the Problem

Divide the problem into smaller, manageable parts:

• List common environmental emergencies.
• Identify characteristics that make an emergency life-threatening.

Step 3: Apply Relevant Concepts

Use appropriate academic theories or formulas to solve each part of the problem:

• Environmental emergencies can include heatstroke, hypothermia, severe dehydration, and others.
• Life-threatening emergencies typically involve immediate risk to health or life.

Step 4: Analysis, Verify and Summarize

Analyze each part in detail if necessary, carry out the calculations by steps. Verify the calculations result and summarize the findings:

• Heatstroke: High body temperature, potential for organ failure.
• Hypothermia: Dangerously low body temperature, risk of cardiac arrest.
• Severe dehydration: Critical loss of body fluids, risk of organ failure.

Final Answer

Present the final result in a concise manner:

• Heatstroke and hypothermia are considered life-threatening environmental emergencies due to their potential to cause immediate harm or death if not treated promptly.