Habitat preservation is when people get together or just one person helps to stop the end of a living space for animals such as the monterey aquarium the help sea life by doing research to see why animals are dying and do what they can to stop it. another one if nation parks or forests you are not allowed to harm them in any way they are protected by laws(the government)
First one is leaves second one is dams
400 km - 300 km = 100 km, since the dog stopped only 100 km away from where he had originally started out.
Acceleration times mass equals speed
Yes if you need to know why i will tell you why
