Magnesium is the element that appears in the second group of the second period.
Indicate whether the statement is true or false
Question 2
Phosphates were once a common component of laundry detergents because they soften water. Why has their use been restricted?
A) The phosphates are poisonous to plants.
B) The phosphates are plant nutrients that lead to excess algae growth.
C) The phosphates were getting into human drinking supplies.
D) The phosphates diminished the supply of calcium found in cow's milk.
Embryonic Period
Embryonic Period
Embryonic Period
Embryonic Period
Group of Chickens
Group defenses: Cluster of sawfly caterpillars regurgitating fluid (yellow) that predators find unap