In what two ways can white blood cells fight infection​

White blood cells carry out their defense activities by ingesting foreign materials and cellular debris, by destroying infectious agents and cancer cells, or by producing antibodies.  They create antibodies to fight against bacteria, viruses, and other potentially harmful invaders. Neutrophils. They kill and digest bacteria and fungi. They are the most numerous type of white blood cell and your first line of defense when infection strikes.

Explanation:

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.