Regular Horlicks contains Wheat Flour, Malted Barley, Dried Skimmed Milk, Dried Whey, Sugar, Calcium Carbonate, Vegetable Fat, Salt, Vitamins, Ferric Pyrophosphate, and Zinc Oxide.
Yes
contain means ingredient
a seed contains nutrients a spore dosen't.
Obviously you're supposed to put contains when "something contains something else" such as "That jar contains food." then contain in a present tense sentence like "Can you contain your dog, please?"
Horlicks are hot drinks which enable people to get a good nights sleep. cheese