The scientific method is an unbiased technique to discover the natural world, draw inferences from it, and forecast the outcome of certain events, progressions, or changes. Scientists use it to speak about environmental problems because this method was established to enable the most accurate and impassionate evaluation of the situation.
First of all, you dont have the answers.
But the answer is "Companies replaced hand-operated brakes with air brakes on trains" is the best answer because this stopped many of the fatalities that were caused by brake failures." which is I say on what you are using D
Answer:
i)Long-term problems include inadequate investment in deteriorating infrastructure.
ii) rapidly rising medical and pension costs of an aging population.
iii)sizable trade and budget deficits.
Critical thinking. ...
Time management. ...
Reasoning. ...
Communication. ...
Research. ...
Analysis. ...
Problem solving.
