What moderates weather so that highs and lows are less extreme?

Atool suspected of being used at a crime scene should be tried out in a tool mark to see if it fits

The body is protected against harmful flu viruses by

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2