Q: What is formed when each sodium atom donates its single valence electron to a chlorine atom? Choices: - carbon chloride - nitrogen chloride - trioxide chloride - sodium chloride A:
sodium chloride

(Question)
Q: Hiv has proteins called what, internal to the envelope, which help stabilize virion shape? Choices: - reduction proteins - step proteins - sphere proteins - matrix proteins A:
(Answer)
matrix proteins

Ques: Q: What are surface currents mainly caused by? Choices: - lightning - waves - rains - winds A:
Ans: winds

(Q).
Q: The average number of individuals per unit of area can be expressed as what? Choices: - the percent of population - percent density - total density - population density A:
(A).
population density

Ques:Q: Production of abnormal white blood cells occurs in what cancer, which is the most common form in children? Choices: - Brain - Breast - Bone - leukemia A:

Ans:leukemia

Question: Q: What is the measurement for the amount of water vapor in the air? Choices: - haze - ambient - saturation - humidity A:
Answer:
humidity