Answer:
1. Saving
2. Investment
3. Saving
4. Investment
Explanation:
In macroeconomics, saving is when an individual's income is greater than consumption. Investment is when an individual purchases new capital. Dor example new machinery, car or house.
The purchase of a house and bulldozer is an investment because new capital is acquired.
The purchase of bond and stocks is savings because income isn't spent on consumption.
I hope my answer helps you