When using a knife to cut a tomato What are three
things you need to do to
carry out this task safely?

keep your thumb on the side of the knife, cut on a cutting board, and use a sharp knife.

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .