1. What qualifies a fossil to be used to find the absolute age of rocks? if the plant or animal existed for a limited period of time and in a wide area

if the plant or animal existed for a long period of time and in a wide area

if the plant or animal existed for a long period of time and in a small area

if the plant or animal existed for a limited period of time and in a small area

2. Which quantity helps determine the absolute age of rocks and fossils?(1 point)

the difference between the amounts of carbon-12 and carbon-14

the difference between the number of protons and neutrons in carbon-14

the ratio of protons to neutrons in carbon-14

the ratio of carbon-12 to carbon-14

3. Which statement best describes why most individual organisms never fossilized?(1 point)

Chemicals that fossilize organisms are rare.

Only organisms with hard parts fossilize.

Only organisms that lived in the ocean fossilize.

Conditions for fossilization are rare.

4. The half-life of carbon-14 is 5,700 years. A certain sample of wood has 20 grams of carbon-14 when it is alive. How many grams of carbon will it have after 5,700 years?(1 point)

40 grams

2 grams

10 grams

5 grams