Question

how do scientists learn about things in the natural world? they create assumptions based on what they learned in grade school; they carry out investigations and perform experiments; they make up ideas based on their personal beliefs; they make non - scientific observations about things in the environment

Explanation:

Scientists use the scientific method, which involves investigations and experiments to learn about the natural world. Creating assumptions from grade school (option 1) is not scientific. Making ideas based on personal beliefs (option 3) is subjective and not scientific. Non - scientific observations (option 4) don't follow scientific principles. Only option 2 aligns with the scientific approach.

Answer:

1. They carry out investigations and perform experiments