Rating Newest Oldest. Best Answer: yes carbon dioxide is a pure substance, provided there is nothing else in it. as soon as you add some oxygen (O2) or methane (CH4) etc it is not pure. the actual molecule is CO2, one carbon and 2 oxygen atoms everytime which makes it pure. it is the same as saying pure salt. salt has sodium and chlorine in it but is still a pure substance provided nothing else is in it.
Yes, mother cats do mate with their offspring. I had cat which had become so old that my family members used to call her grandmother cat. I had once seen her mating with her offspring and THEIR offspring at different times!
Tiger courting process. Tigers donât have a set season for reproduction to take place. Instead they are able to engage in the activities throughout the year. However, most of the time it will occur from late November through early April. Males are ready to mate when they are approximately 5 years of age. For females it is about 3 Â½ years of age. During the courting process you may hear tigers making a variety of howls and whines for each other. The males usually start this off but the females are very likely to respond.