#include<iostream>
#include<cstring>
using namespace std;
int father[200010];
int n,m,q;
int getfather(int);
void merge(int,int);
bool judge(int,int);
void work();
int main()
{
	work();
	return 0;
}
void work()
{
	cin>>n>>m;
	for(int i=1;i<=n;i++)father[i]=i;
	int x,y;
	for(int i=1;i<=m;i++)
	{
		cin>>x>>y;
		merge(x,y);
	}
	int q;
	cin>>q;
	for(int i=1;i<=q;i++)
	{
		cin>>x>>y;
		if(judge(x,y))cout<<"Yes"<<endl;
		else cout<<"No"<<endl;
	}
}
int getfather(int x)
{
	if(father[x]==x)return x;
	father[x]=getfather(father[x]);
	return father[x];
}
void merge(int x,int y)
{
	x=getfather(x);
	y=getfather(y);
	father[x]=y;
}
bool judge(int x,int y)
{
	x=getfather(x);
	y=getfather(y);
	if(x==y)return 1;
	else return 0;
}
/**************************************************************
	Problem: 2237
	User: admin
	Language: C++
	Result: Accepted
	Time:1360 ms
	Memory:2856 kb
****************************************************************/