Answer:
Electromagnets are powered by electricity. Normal magnets are just magnetic.
Explanation:
Isn't it obvious?
To be honest, since we live on Earth (assuming you do as well), Earth is the easiest planet to study. We don't know much about the other planets because we've never been to any of them. I believe that the second easiest planet to study is either Uranus or Saturn.
Answer:
You have to use certain materials, so that's a limitation
Explanation:
You have to use certain materials, so that's a limitation because you can't use every materials in the world. You have to use certain ones.
<span>The correct answer should be death. Growth and adult and beginning mean that it's fine and healthy and working properly. If it enters the death stage then it means that it is slowly dying and will eventually die due to the disease. There are many such diseases for plants, often coming from other organisms.</span>
The answer would be b, emigration because emigration means to leave an area to go to another one, and all those factors would result in the animals leaving.