PLEASE HELP WILL GIVE BRAINLIEST How can diversity within an ecosystem be compromised?
A.)by building structures on natural habitat areas
B.)by regulating human activity within an ecosystem
C.)by helping to maintain habitats that have been disturbed
D.)by leaving the ecosystem alone to fend for itself

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

Which of the following is an example of units for speed

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final