One important drawback of the use of hcfcs as a replacement for cfcs is that hcfcs are more potent greenhouse gases.
<h3>
What is hcfcs?</h3>
HCFCs is an acronym for hydrochlorofluorocarbons (HCFCs).
Thye are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), derived from alkane family.
<h3>What is cfcs?</h3>
CFCs is an acronym for Chlorofluorocarbons (CFCs), derived from alkane family like hydrochlorofluorocarbons.
<h3>Disadvantage of hcfcs over cfcs</h3>
One important drawback of the use of hcfcs as a replacement for cfcs is that hcfcs are more potent greenhouse gases.
Learn more about hcfcs and cfcs here: brainly.com/question/15885478
Mass is a newtons and it will not be weight because it’s mass
Answer:
See explanation
Explanation:
Echo is the reflection of sound waves. Recall that ultrasound are also sound waves of high frequency.
When ultra sound meets an obstacle such as a bone, it is reflected backwards and gives rise to an echo back in the transducer.
Since ultrasound is high frequency sound wave wave; It does not passes through bone due to the high density of the bone, the data required may now be collected.
Answer:
B: it allow quick conversation to others