There are a currency converter and a calculator but no email client or text message chat. The catalytic Scientific E Notation Converter mixes these gases with air and then passes them over a catalyst made of rhodium and platinum metals.
Yes you can. But you have to redirect the old version of url to new version. You need to make 301 redirect /ptta-portfolio/ to just /portfolio/. I have done it one of my website article https://reviewlog.org/best-air-fryer-for-a-large-family/ and there was no effect on ranking but you need to be very careful about redirections