#include<bits/stdc++.h>
using namespace std;
vector<int> G[1000000];
int check[1000000];
int comp;
void dfs(int u){
    check[u]=comp;
    for(auto v:G[u]){
        if(!check[v]) dfs(v);
    }
    return ;
}
int main()
{
    int n,m;
    scanf("%d%d",&n,&m);
    int x,y;
    while(m--){
        scanf("%d%d",&x,&y);
        G[x].push_back(y);
        G[y].push_back(x);
    }
    for(int i=1;i<=n;i++){
        if(!check[i]){
            comp++;
            dfs(i);
        }
    }
    int q;
    scanf("%d",&q);
    while(q--){
        scanf("%d%d",&x,&y);
        if(check[x]==check[y]) printf("Yes\n");
        else printf("No\n");
    }
    return 0;
}