They assigned me this document in science in which they give me clues and I have to find the element in the periodic table. Question: A noble gas in the same period as Zn?
URGENT

What was the land like over 500 million years ago? what was under the sea?

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Lactic acid and energy are produced in muscle cells during choose 1 aerobic respiration cellular respiration anaerobic respiration cellular division