The sulfur and nitrogen compounds found in smog combine with water in the atmosphere to form

A)

ozone.

B)

CFC's.

C)

acid rain.

D)

greenhouse gases.

How many grams does 20 kilograms equal?

Question 8 How would you describe the effect of different magnitudes of the same factor on the number of individuals within a population? Use evidence from the graph and table (average values) to support your answer

Why do tsunamis grow as their speed increases

Identify the major functions of the endocrine system

During meiosis i, homologous chromosome pairs are separated when the centromeres split apart.

Explain griffith's experiment and the concept of transformation

During what process in the cell cycle does one cell become two cells?

All BUT one description applies to the structure of RNA. That is A) four nitrogenous bases. B) double-stranded molecule. C) contains a phosphate group. D) 5-carbon sugar called ribose.

Although a fetus is relatively protected in its mother's womb, a number of different toxins can harm the fetus. These include lead, mercury, glycol ethers, and many other substances. How do toxins usually reach the developing fetus

What is an abiotic factor of a marine ecosystem? A). Food produced B). Temperature change as you go deeper into the ocean C). Reproduction of animals