Answer: c) Researchers think that stresses created by humans are the reason behind increasing numbers of elephant attacks.
Explanation:
The aforementioned article by National Geographic shows that the higher number of elephant attacks on humans are as a result of human activities that are placing stress on elephants.
Humans are increasing in population and as a result need more land for farming. This is resulting in a shrinking habitat for elephants who then encroach on human farms and are killed for it which leads to some elephants having Post Traumatic Stress Disorder and killing other humans which then continues the cycle.
Answer:
essay below
Explanation:
Government plays a large factor in today's society and has a lot of control over it. Government should be monitoring and changing today's society in a positive way.
The first souce indicates that the government allowed children to work in dangerous conditions, and it was unhealthy as a whole towards everyone who worked there. This was later changed after laws were passed.
The second source shows food insecurity among Inuit Children, the government is needed in areas like these to help support their civilians.
The third source shows equality towards all, now while this is not present throughout the societies of the world and sometimes even governments, this is something that the government should contribute in.
Overall, I suggest that the government should be helping modify today's society and it's problems, such as homelessness, going hungry, healthcare, worker's rights, etc.
Each language is important since they enable people to communicate and express themselves. When one dies out, future generations won't be able to understand that culture as they lost one vital part: language. This is why so many cultures want to preserve their language, as it is a vulnerable aspect of cultural heritage. However, despite efforts, a language dies out every two weeks.
DC motors are usually seen in applications where the motor speed needs to be externally controlled. AC motors work best in applications where power performance is sought for extended periods of time. All DC motors are single phase, but AC motors can be single phase or three phase.
AC and DC motors use the same principle of using an armature winding and magnetic field except with DC motors, the armature rotates while the magnetic field doesn’t rotate. In AC motors the armature does not rotate and the magnetic field continuously rotates.
In some applications today, DC electric motors are replaced by combining an AC electric motor with an electronic speed controller, known as variable frequency drives. DC electric motors are replaced with an AC electric motor and an electronic speed controller because it is a more economical and less expensive solution.
DC electric motors have many moving parts that are expensive to replace, and DC electric motor repair is usually more expensive than using a new AC electric motor with an electronic controller.
In our experience, combining an AC motor and drive proves to be the most cost effective solution for mostapplications. When servicing our customers in the field, we often recommend looking at the SMVector Series Variable Frequency Drive in combination with a three phase AC motor.
