There are many cow herds with Angus cows that are excellent mothers, some too good that the producer can't get near the calf without having momma blowing snot down his back pockets. Some Angus herds, though, may have cows with not so good mothering ability. It all depends on the individual herd and what producers have selected into or out of their Angus cow herds.
Yes to both, though the Red Angus breed is not a dairy breed. Still, the breed is known to have great mothers that raise good soggy calves
Angus cows are beef cows, not dairy cows. Holsteins are dairy cows, not beef cows, which is where we get the majority of our milk from.
Scotland.
Angus cows or heifers come into heat every 21 days.
No.
No. Black Angus cows are all black. You can only get black cows with white faces if they have a sire as a Hereford or traditional Simmental. These cows are called "black baldies" and should never considered as purebred Angus because they are not purebred at all: they are crossbreds.
Brahmans are known for their great mothering ability, yes.
The things that are made from Angus cattle are exactly the same as what would be made from any other cattle of any other breed: hide for leather; hair for upholstery, paint brushes; the list goes on.
Semen that is ejaculated into cows to produce Angus-sired calves.
meat, hence "angus beef burgers"
Scotland.
Aberdeen Angus burgers are made from beef which come from cows.
Yes, they are mammals.