Trading is a very risky part while investing is you're always is a safe zone. Why? Because you can hold it depend on how long the time frame you want and the profit you have been targeted on it.
Not necessarily. You being in the sort of "safe zone" completely depends on what you're actually investing in. I mean, you could hold certain penny stocks for god knows how long and you could still end up in a huge loss.
Both are risky, and it doesn't mean that you're not an active trader and just holding a certain portfolio can give you a guarantee to make profit. If you are just investing and holding, you still need to actively watch the market so you can know if your money is still growing or no more chance to go up because it is being de-listed or a certain exchange. There's a big different on a risk level of this two, you just need to classify your risk appetite and invest properly.