Question

compounds (continued)
discuss elements and compounds by completing the following paragraph.
there are more than 90 naturally occurring elements. seventy - five percent of the universe is 75%. the earth’s crust and the human body are made of different elements. but is an element that is abundant in both. most objects are made of with approximately ten million known and over being developed and discovered every.

Explanation:

The first two blanks are filled with known scientific facts about elements. Oxygen is abundant in both the Earth's crust and the human body. Most objects are made of compounds, and new compounds are constantly being developed and discovered over time (year is a reasonable time - frame).

Answer:

Oxygen; compounds; thousands; year