no
i really dont kno
you can lift the same weights on a cable system as with free weights (usually). the difference is that free weights are able to target specific muscles where are with cables you don't really have this option (it is sort of possible but not as effective). a cable system is good for a beginner as it allows you to use stabilising muscles and is less likely to cause injury.
The length of time it takes for your solar panels to become cost effective really depends on how well they were installed in the first place. In first few years, you should see how effective the panels are in reducing costs.
No not really they are more of an excersise. Weights will help out alot more.
The brand of exercise weights does not really matter. The thing you need to take into consideration is the size of the weights that you plan to purchase.
Buy some weights and work out!
no because i do weights well sorta and ive grown im tall man so no its not true
yes
If you haven't lifted weights before a month of doing so can really improve your muscular appearance.
Not really. It will not have a difference with weight if you do not combine it with diet and exercise everyday. Coffee with sugar in the morning will help stimulate your metabolism and help you excrete waste everyday.
using free weights is one of the best ways to conduct your workout. As for your question, the more sizes of weights you have the more options you will have in your workout routine. You could get by with fewer weights by being more creative in you workout.
reducing energy can help prevent fossil fuels which really helps the enviormeny