Following Is a List of Possible Climate Change Tipping Points

question 94

Multiple Choice

Following is a list of possible climate change tipping points, except for one.Choose the one that is not a tipping point.

• A)atmospheric level of 450 ppm
• B)collapse and melting of the Greenland ice sheet
• C)expansion of Amazon rainforest
• D)massive release of methane from Arctic permafrost
• E)sharp drop in the ability of the oceans to absorb CO2

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Definitions:

Depressants

A class of drugs that reduce neural activity and slow down the functions of the body, often used to induce calmness or sleep.

Agonist

A chemical or drug that binds to receptors in the brain and causes an action or response, often mimicking the effects of naturally occurring substances.

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another.

Freud

Sigmund Freud, an Austrian neurologist best known for developing psychoanalysis, a method through which an analyst unpacks unconscious conflicts based on the free associations, dreams, and fantasies of the patient.