Changing the would change it into an atom of a different element.
a. number of electrons surrounding the nucleus of an atom
b. number of protons in the nucleus of an atom
c. electrical charge of an atom
ber of neutrons in the nucleus of an atom

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

Why does the skin of your finger shrink when you wash clothes for a long time?

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses