Ocean life appears to be affected by a relatively small number of variables such as temperature, density, available sunlight, available nutrients. If any one of these variables changes how do you think it might it impact the human food web?
What will be an ideal response?
The oceans are huge so it would be difficult to change the entire food web but human activities and natural events must impact parts of our food web often. Climate change will shift the major temperature zones. As the population increases, those impacts are likely to increase also and it is possible that there will be major losses of food that could cause a famine or dietary hardship for some parts of the human population. It would make sense to know as much as possible about our food sources before we make a fatal mistake.
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An important goal of environmental science is to learn how life on the earth has thrived and survived
Indicate whether the statement is true or false
During the 1950s land ownership was abolished and collectives were established to be followed by the creation of People's Communes in China. The result:
A) Increased productivity led to export surpluses. B) Land dedicated to vegetables and fruits, much of it converted from grain fields, increased 393 percent. C) The per capita consumption of meat in China increased from 12 pounds to 62 pounds. D) The deaths of some 14–26 million people from famine-related illness and starvation occurred.
Which of the following is an endogenic process?
A) weathering B) stream deposition C) volcanism D) glacial erosion
What tool is often used to measure the topography of the seafloor today?
A) High-resolution multibeam instruments B) Sonar C) Echo sounders D) Radar altimeters