I have a few questions with regards to any compensation/kaffara/ consequences for following acts done in ihram of hajj:

-passing hand over any body part which leads to falling off hair
-plucking hair of ears
-covering the nose to bad smell
-hurting an ant
-talking about your profession

please note above actions were done forgetfully

– at the time of halaq, scalp starts to bleed due to the blade. However as a precaution we did cut some hair before starting the halaq.

For the first one, just give one hand full rice or flour to a needy person. It is better to make it 1 kg.
For the rest, if it was done not intentionally, there is no kaffarah.