Element are building blocks of matter that combine chemically to form countless compounds. which of the following are example of elements?
a acid, base and salt
b silicon, iron, and aluminum
c water, methane, and glucose
d proton, neutron and electron

Graphs you see question 5 options: the change in data over time the relationship between different dependent variables the relationship between the independent variable and the dependent variable/s the relationship between different independent variables

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above