Watching videos on Coinbase and CoinMarketCap and learn about new projects is a funny way to earn some free coins. In case you haven't heard about it, the way it works is that these sites partner with projects to offer an easy way to learn about their cryptocurrency and earn cryptoassets as a reward.
Right now, the earning campaign for The Graph project (https://thegraph.com) is live. In a few words, the Graph is an indexing protocol for querying networks like Ethereum and IPFS. Anyone can build and publish open APIs, making data easily accessible. Data is indexed and processed by a decentralized network of computers.
Here is the link to access to the quiz in Coinbase: https://www.coinbase.com/earn/the-graph (you're gonna be put in a queue to wait for your turn to earn) and in CoinMarketCap: https://coinmarketcap.com/earn/project/the-graph and here are my answers to the quiz in case you want to compare to yours: