The use of mobile cellular phones has increased global communication, yet like all forms of
te...
Biology, 22.05.2020 02:11 briannaaaa30
The use of mobile cellular phones has increased global communication, yet like all forms of
technology, there are some environmental costs. Metals such as tin, tantalum, tungsten, and
gold are used in the manufacturing of mobile phones. Which environmental costs are
most likely a result of an increase in mobile cell phone use?
A) Using mobile phones causes humans to be less active and depended on them for all information.
B)
The cost of mining the metals for the manufacturing of the mobile phone can increase the
rate of recycling.
Using mobile phones reduces the use of automobiles which decreases the amount of
C)
gasoline used in order to communicate with others.
Mobile phones contain metals that can leach into landfills when they are disposed of
D)
improperly.
Answers: 1
Biology, 21.06.2019 19:00
The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.
Answers: 1
Biology, 21.06.2019 20:00
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
Answers: 1
Biology, 22.06.2019 05:20
Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions
Answers: 2
Biology, 22.06.2019 06:30
Aplant may open end close its stomata to prevent excess water loss and maintain
Answers: 1
Computers and Technology, 20.11.2020 02:20
Mathematics, 20.11.2020 02:20
Biology, 20.11.2020 02:20
Physics, 20.11.2020 02:20
Mathematics, 20.11.2020 02:20
Geography, 20.11.2020 02:20
History, 20.11.2020 02:20
Social Studies, 20.11.2020 02:20
History, 20.11.2020 02:20
Mathematics, 20.11.2020 02:20