A student enjoys candies. While walking home from the store a student put a pack of candy-coated chocolates in his pockets. When he reached his home, he decided to enjoy the candies. However, when he pulled them out of his pocket, they were melted. He wondered what caused the candies to melt and decided to investigate further. The student asked the question, “How does heat affect the coating on candy-coated chocolates?” He purchased several types of candies to test, including candy-coated chocolates, chocolate candy-coated almonds, chocolate candy-coated peanuts, and chocolate candy-coated peanut butter. He estimated the distance from the store to his house (about 15 minutes). He decided walk around his house with a pack of chocolates in his pockets for 15 minutes at a time while completing his daily tasks. He did this every day for one pack of chocolates at a time. Each day when the 15 minutes were done, he observed the chocolates to see if they melted. All of the following are true about this experiment except ___.

This seems like a controlled experiment because one variable is changed.

There doesn’t seem to be a consistent set of conditions for the experiment to be completed.

There doesn’t seem to be a control group in this experiment.

More than one variable has been changed in this experiment.

The correct answer is c

Environmental science studies the interactions between the physical, chemical, and biological components of the environment, including their effects on all types of organisms. earth science (also known as geoscience), is an inclusive term for all sciences related to earth (geology, meteorology, oceanogr maphy, etc).  although environmental and earth science cover essentially the same material, environmental science places greater emphasis on the biological realm, while earth science places greater emphasis on the physical realm.    environmental and earth science study the interactions of four major systems or “spheres” (figure 8.6).  the  geosphere  consists of the core, mantle and crust of the earth.the  atmosphere  contains all of the earth’s air and is divided into troposphere, stratosphere, mesosphere, thermosphere and ionosphere.the  hydrosphere  contains all of the solid, liquid and gaseous water on earth, extending from the depths of the sea to the upper reaches of the troposphere where water is found.  ninety-seven percent of the hydrosphere is found in salty oceans, and the remainder is found as vapor or droplets in the atmosphere and as liquid in ground water, lakes, rivers, glaciers and snowfields.  the  biosphere  is the collection of all earth’s life forms, distributed in major life zones known as biomes:   tundra, boreal forest, temperate deciduous forest, temperate grassland, desert, savannah, tropical rainforest, chaparral, freshwater, and marine.although the four systems have their unique identities, there is substantial interaction between them.  environmental scientists study the effects of events in one sphere on the other spheres. for example, a volcanic eruption in the geosphere may cause profound direct and indirect effects on the hydrosphere, atmosphere and biosphere as follows: example 1 (volcano)    on may 18, 1980, mount saint helens, in the state of washington, erupted.  this event altered the surrounding environment, and provided scientists with an opportunity to study the effects of volcanic eruptions on the geosphere, hydrosphere, atmosphere and biosphere.  such studies are vital because volcanic eruptions will continue to occur, and will have increasing impact on humans as people continue to settle lands closer to dormant volcanoes. the following are but a few of the myriad of interactions resulting from a volcanic 

The answer to this is b