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Yes, there was. If there wasn't, no life on Earth (including the dinosaurs) would exist. It is believed, however, that the relative amounts of atmospheric gasses during the time of the dinosaurs may have been notably different than they are now, but there is no question that oxygen was part of earth's atmosphere at that time.
What else can I help you with?
Why were dinosaurs so big?
There was much more food back then, so they ate more and grew.Not all dinosaurs were huge. Many were quite small. It is believed that during the Mesozoic, earth was at its highest point of life sustaining ability. The high oxygen levels allowed truly massive animals to evolve.
Was there more land than water when the dinosaurs roamed the earth?
Yes, during the time of the dinosaurs, there was more land than water on Earth. The supercontinent Pangaea existed during the Mesozoic era, which was the time when dinosaurs lived. As Pangaea broke apart, it eventually led to the formation of the continents we have today.
Why you breath more during excersise?
because your body is using more oxygen so it needs to get more oxygen
Did snakes have feet when dinosaurs were alive?
There were ancestors of snakes that had feet during the time of the dinosaurs. But the mere fact that they had feet meant that they would be considered snakes. Instead they were more like modern lizards. The first snakes appeared during the Cretaceous period when dinosaurs still dominated the earth.
Were Jurassic dinosaurs bigger than triassic dinosaurs?
Yes. This is mainly due to the sudden increase of vegetation during the Jurassic as well as the fact that the vegetation was getting much abundant, with more vegetation comes more oxygen. this sudden increase of vegetation allows herbivores of that time to grow in size (Eg. Protosauropods from the Triassic to Sauropods like Diplodicus and Brachiosaur in the Jurassic). With larger Herbivores comes in larger carnivores, the once abundant Ceratosaurus has been reduced due to competition with larger and more advance carnivore like Allosaurus. So yes Jurassic dinosaurs were indeed bigger and ADVANCE due to larger vegetation and increase in oxygen.
Do you get more oxygen from trees or the ocean?
You get more oxygen from trees. Trees produce oxygen through photosynthesis, while the ocean produces oxygen mainly through phytoplankton. However, trees are more efficient at producing oxygen because there are more trees on land compared to phytoplankton in the ocean.
Do plants release more carbon dioxide or oxygen during photosynthesis?
During photosynthesis, plants release oxygen and not carbon dioxide.
Was there more plant dinosaurs then meat eating dinosaurs?
yes most dinosaurs ate plants
Are dinosaurs still roaming the earth?
No, there were no people in the time of the dinosaurs. Humans came about 3 million years ago and by then all the dinosaurs were extinct.Dinosaurs lived during the late Triassic period, 280 million years to the late Cretaceous, 65 million years.Read more: When_did_the_dinosaurs_dominate_the_earthRead more: Did_dinosaurs_dominate_the_earth
What gas do you need more of during exercise?
During exercise, your body needs more oxygen to supply to your muscles. This is because oxygen is essential for the process of generating energy through aerobic metabolism. Therefore, increasing your oxygen intake through respiration is important to support your muscles during physical activity.
What is the population of dinosaurs of each species added all up together?
It is hard for scientists to determine how many dinosaurs roamed the Earth during their time. Some say there were more than 10,000 species including birds before the dinosaurs became extinct.
Are dinosaurs related to mammals?
No, dinosaurs are more related to reptiles and birds.
