What percent of ukrainians think of themselves as russians? and does russia have an justification for taking the territory of another country or are russian actions in ukraine aggressive tactics to gain resources and territory?

What percent of Ukrainians think of themselves as Russians?

This we have to ask the people. Luckily, in 2001 there was a census and 17% of Ukrainians said they identify as Russians: this is the answer.

does Russia have an justification for taking the territory of another country?

This is a relative question. Russians would say that yes, they have citizens in this other country that they need to protect, but the international community sees is as a violation of independence of Ukraine and sees it as Russia trying to gain ressources and Territory

The price of oil and inflation are connected in a cause and effect relationship, that is, when the price of oil increases, inflation also increases in an economy. this is because, oil is a major input in the economy, that is, it is used for critical purposes such as fueling of vehicles for transportation, for running of industrial generators and machines, for heating homes, etc.for instance, if the price of oil increases in an economy, it will increase the cost of production for those using the oil in their production processes and they will automatically increase the cost of their products in order to offset the extra costs. this leads to general increase in the prices of products in the market and result in inflation.