Question

0 what is coming together and holding together fedrilism

Answer 1

When an independent states are come and make their bigger unit for making sovereignty called coming together federalism.
EX- US , UK

When a country decided share their central power to state government is called holding together federalism.
EX- INDIA , BELGIUM

Answer 2

ⓗⓔⓡⓔ ⓘⓢ ⓨⓞⓤⓡ ⓐⓝⓢⓦⓔⓡ

$\boxed{Coming \:Together\: Federation}$
In this federation independent States coming together on their own to form a bigger unit. So they increase their security. In this federation all the constituent States have equal power and are strong than the federal government.
eg: USA, Switzerland

$\boxed{Holding \:Together \:federation}$
In this form of government a large decides to divide its power between the constituent States and the national government. Different constituent units of federation have unequal power. In this government, the Central government seen to be more powerful than the State government.
eg:- India, Spain

❤HOPE IT HELPS YOU❤
ッ