Which explains what happens to a warm air mass at a warm front?
a.
a warm air mass overtakes a cold one, and the warm air rapidly rises and cools. the water in the air condenses to form clouds and severe thunderstorms.
b.
a warm air mass overtakes a cold one, and the warm air gradually rises and cools. the water in the air condenses to form clouds and severe thunderstorms.
c.
a warm air mass overtakes a cold one, and the warm air gradually rises and cools. the water in the air condenses to form clouds and moderate precipitation.
d.
a cold air mass overtakes a warm one, and the cold air gradually sinks and warms. the water in the air condenses to form clouds and moderate precipitation.

Option (C)

Explanation:

The warm fronts are the frontal surfaces that have a moderate slope. Here the warm and light air containing moisture becomes light and active and it eventually rises up over the dense cold air. This rising warm air then gets saturated and after condensation, they fall back in the form of moderate rainfall or snowfall. This precipitation usually takes place doe several areas over a comparatively large area. After precipitation, warmer and milder weather occurs in that area.

Hence, the correct answer is option (C).

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.