Discourage the dog from barking during the day and night by always ignoring barks; reward the dog with play and attention when the dog is not barking, and ignore the dog when it is barking. Positive reinforcement will help the dog to learn that barking, during the day or night, does not result in a reward.
The green pigment chlorophyll chlorophyll, green pigment that gives most plants their color and enables them to carry on the process of photosynthesis. Chemically, chlorophyll has several similar forms, each containing a complex ring structure and a long hydrocarbon tail......
  Yes, because chlorophyll gives foliage the green pigment needed for photosynthesis to occurr. It is needed because with it there are chloroplasts in the foliage which ab â¦ sorb the sunlight producing oxygen for us life forms.hlorophyll is a green pigment, that can be found in most plants. It absorbs sun light, the energy source for Photosynthesis, and is essential for plants to make food.