At the present time, the global human population surpasses seven billion people. If we exceed the carrying capacity of the earth, the human population may suffer a substantial collapse.
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Consider the following formula for population change:
population change = (births + immigration) ? (deaths + emigration)
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What will be required of humans in order to stabilize or reduce our population?
What will be an ideal response?
Speaking on a global scale, there is no place for us to come from (immigration) or go to (emigration). That means population change is limited to births minus deaths. To put it in the crudest of terms, we must either reduce the number of births or increase the number of deaths in order to stabilize or reduce our population. If we choose not to undertake that change, nature will do so as we exceed our carrying capacity.
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The Earth has functioned as a life-supporting self-sustaining system for over 8 billion years. Indicate whether the statement is true or false
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This extra heat, wasted in the summer, is produced as a result of the A) Law of the Conservation of Momentum. B) First Law of Thermodynamics. C) Law of Inertia. D) Second Law of Thermodynamics.
A high-oxygen content and a low-nutrient content in surface seawater indicate that a population of ________ are present.
A. decomposers B. phytoplankton C. bacteria D. animals E. None of these is correct; they indicate no life presence.