Q: What is the addition of oxygen to a molecule or the removal of hydrogen from a molecule called? Choices: - precipitation - evaporation - ionization - oxidation A:
oxidation

(Question)
Q: The stem of a horsetail is characterized by the presence of joints, or nodes: hence the name arthrophyta, which means this? Choices: - solid plant - molted plant - elongated plant - jointed plant A:
(Answer)
jointed plant

Ques: Q: What do scientists use to help explain objects or systems in simpler ways? Choices: - theories - measurements - plants - models A:
Ans: models

(Q).
Q: What is energy from the sun called? Choices: - potential energy - thermodynamic energy - kinetic energy - solar energy A:
(A).
solar energy

Ques:Q: New land can be created when what happens to a volcano? Choices: - it evolves - it dies - it stays dormant - it erupts A:

Ans:it erupts

Ques:Q: Wave amplitude of a transverse wave is the difference in height between what and the resting position? Choices: - a valley - a cascade - a magnitude - a crest A:

Ans:
a crest