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marta [7]
3 years ago
8

Which has not been a major source of CFCs? plastic foams refrigerators televisions air conditioners

Biology
2 answers:
Bond [772]3 years ago
6 0

Chloroflurocarbon is consists of carbon, fluroine and chlorine atoms. So , amoung the following option television is not the major source of chloroflurocarbon.They are non- flammable ,non- toxic consist of carbon, fluroine and chlorine. They are human made compounds .Hence , option television is correct option it

Reil [10]3 years ago
5 0

Answer:

Televisions

Explanation:

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Describe and explain how blood flows from the foot to the lungs.
Natali5045456 [20]

Answer:

lungs:

The blood first enters the right atrium.

The blood then flows through the tricuspid valve into the right ventricle.

When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery.

The pulmonary artery carries blood to the lungs where it “picks up” oxygen.

It then leaves the lungs to return to the heart through the pulmonary vein.

The blood enters the left atrium.

It drops through the mitral valve into the left ventricle.

The left ventricle then pumps blood through the aortic valve and into the aorta. The aorta is the artery that feeds the rest of the body through a system of blood vessels.

Blood returns to the heart from the body via two large blood vessels called the superior vena cava and the inferior vena cava. This blood carries little oxygen, as it is returning from the body where oxygen was used.

The vena cavas pump blood into the right atrium and the cycle begins all over again.

6 0
1 year ago
What interventions could increase monogamy among meadow voles?
bagirrra123 [75]

Upregulation of vasopressin and oxytocin in the spinal cord using microcatheter interventions could increase monogamy among meadow voles. the correct answer is option(e).

In contrast to non-monogamy, monogamy is a type of dyadic interaction in which an individual has only one partner during their lifespan or, alternatively, just one partner at any given moment. The phrase is also used to describe how some animals behave in social situations, specifically the status of having just one mate at any given time.

Inhibitory interneurons may be activated by oxytocin and vasopressin across subcortical and possibly cortical networks, including reward pathways, to moderate their effects. Brain areas that are important for maintaining behavioral and physiological equilibrium are where oxytocin and AVP are largely produced. These two peptides are produced by several cells in distinct areas of the brain, including the supraoptic nucleus (SON) and paraventricular nucleus (PVN) in the hypothalamus.

To know more about monogamy refer to:  brainly.com/question/13161546

#SPJ1

5 0
2 years ago
What is the action force and reaction force of walking
RoseWind [281]
That's hard. The action might be when you go to lift your feet off the ground and the reaction force is letting your feet touch the ground again while taking a stride. Hope this helps.
8 0
3 years ago
One of the most common causes of pneumonia is Streptococcus pneumoniae, a gram-positive bacterium. Surrounding the bacterium is
eimsori [14]

Answer:

3. Polysaccharide carbohydrate

EXPLANATION:

The POLYSACCHARIDE capsule of Streptococcus Pneumoniae is the major virulence factor in it's invasion and subsequent infection.

The capsule helps to avoid phagocytosis which is a defence mechanism by the body.

The polysaccharide capsule also gives the bacterial organism several serotypes.

The pneumococcal vaccine is derived from the organism's capsule.

6 0
3 years ago
For frost to be on the grass in the morning, the water vapor in the air must ____
zhuklara [117]

Answer:

Condense and freeze

Explanation:

During a warm day , the water from the ground gets evaporated into the air

During the evening,the temperature of the ground drops down as heat  is radiated from ground to the air continues

At a point called the <em>"dew point" </em>,the air in the moisture becomes so great that it can not hold more of it .The condensed air allows the dews to form on the surfaces that are away from the ground (that radiates heat) .grass and objects etc

7 0
3 years ago
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