Q: What is it called when two waves combine to create a larger wave? Choices: - Destructive Interference - consistent interference - wave propagation - constructive interference A:
constructive interference

(Question)
Q: What is the rising and sinking of warm and cooler material called? Choices: - depression - conveyance - diffusion - convection A:
(Answer)
convection

Ques: Q: What are the only living organisms that can make their own food? Choices: - bacteria - protozoa - animals - plants A:
Ans: plants

(Q).
Q: What results when the water vapor from a hot shower contacts the cooler surface of a mirror? Choices: - the mirror breaks - mirror brightens - cleaner mirror - foggy mirror A:
(A).
foggy mirror

Ques:Q: About how full is the outer energy level in metalloids? Choices: - nearly empty - three-fourth full - a quarter full - half full A:

Ans:half full

Ques:Q: How many atoms are evenly organized around a central atom? Choices: - four - five - seven - six A:

Ans:
six