Coinbase quizes are a a easy way of earning a pretty decent amount of money in a very short period of time.
Coinbase registration link (you get 10 USD in BTC when you buy 100 USD (or equivalent in your currency) worth of crypto coinbase.com/join/dijkhu_2y?src=android-link
Link to Band protocol quiz
https://coinbase.com/earn/band/invite/9kh0jx6p
1. Real world problems
2. Oracles
3. Earn crypto rewards
Link to COMP quiz
https://coinbase.com/earn/comp/invite/z5fpm6h7
Answers:
1. Earning interest on your crypto
2. Supply a crypto asset as a collateral
3. COMP token holders
Link to XLM quiz
https://coinbase.com/earn/xlm/invite/8bhdzpk3
Answers: 1, A decentralized protocol that unites the world financial structure
2. Facilitating low cost universal payments
3. Transactions are fast, inexpensive and global
4. To issue exchange, and transfer tokens quickly and efficiently
5. It relies on cooperation of trusted nodes to confirm transaction
