Which of the following are ozone depleting substances

When checking a responsive person and you need to ask them a question it is important that you 

Consanguinity refers to mating between closely related people.  

New challenges are threatening because they feel their intelligence may not be up to the task. Which mindset does this statement represent?

What is the volume of 250.0g nitrogen gas at SATP?

In a two-point linkage analysis, genes a and b have been found to be 16 m.u. apart on the same chromosome. A third gene, c, has just been discovered and found to be located between a and b. A three-point linkage analysis with a, b, and c indicates that a and b are actually 21 m.u. apart rather than 16 m.u. Why does the three-point analysis give a different map distance for a and b than does the two-point linkage analysis, and which is more accurate? 

Genes come in different versions called genotypes.

(H) What is the total cost of Job 203?   (No “$” or “,” in your answer)

Blunt trauma to the pelvis is acutely (immediately) dangerous due to potential

Suppose that extra fingers and toes are caused by a recessive trait, but it appears in only 60% of homozygous recessive individuals. Two heterozygotes conceive a child. What is the probability that this child will have extra fingers and toes?