Answer: It is a collective investment in global peace, security, and stability. Peacekeepers protect civilians, actively prevent conflict, reduce violence, strengthen security and empower national authorities to assume these responsibilities.
Answer:
When non metals such as nitrogen and phosphorus are solids, they tend to be very dull and brittle which is due to the tendency of elements to revert to their original form.
Lamarck was strong on the inheritance of acquired characteristics but may have placed too much emphasis on this happening in a short period of time like perhaps a few generations. Charles Darwin showed that something similar happened by natural selection of varieties that were favorable to the survival of the species and the extinction of varieties that were not adapted to the natural conditions, but that this process took time but in the end, an organism can develop more favorable traits like mankind when he/she developed the apposable thumb which was an innovation that allowed him to progress from his ape ancestors.
Since the boulder is raised with constant velocity, the net force on the boulder is zero, so that the boulder has weight 175 N on this planet. If its mass is 87.5 kg, then the acceleration due to gravity is g such that
175 N = (87.5 kg) g ⇒ g = (175 N) / (87.5 kg) = 2.00 N/kg = 2.00 m/s²