Doing a presentation on your favorite device is a good practice for evaluating technology for the workplace. true or false?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

What class of levers is shown in this image?