In this bear market, does 100$ on Ethereum or Bitcoin make any difference? As a newbie who have only 100$ to risk is this even enough? Can this get me anywhere?
The $100 in the hands of some professional traders could become $100,000 within three months. But as a newbie in the trading and investment world, you should first prepare for the worst as you might lose all the money due to emotion and bad decisions. This will only be a preparatory step for you, which many have passed through when they started newly.
And as for the difference between Bitcoin and ETH, both could be invested in with no major differences provided you know how they are being priced. Also, they mostly move alike but their volatility might not be the same.