About 71% of total global carbon is found in
Correct answer: A. Oceans
- A. Oceans
- B. Forests
- C. Grasslands
- D. Agroecosystems.
Explanation
Carbon constitutes 49% of the dry weight of an organism and is next only to water. Among the total quantity of global carbon, 71% is found in oceans in dissolved form whereas only 1% is found in the atmosphere. Carbon cycling occurs through theatmosphere, ocean and living or dead organisms.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
Practise Man and His Environment
382 free Man and His Environment MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Man and His Environment questions
The slow rate of decomposition of fallen logs in nature is due to their
Consider the following statements concerning food chains. A. Removal of 80% tigers from an area resulted in greatly increased growth of vegetation. B. Removal of most of the carnivores resulted in an increased population of deer. C. The length of food chains is generally limited to 3-4 trophic levels due to energy loss. D. The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct?
Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?
Which one of the following is not used for the construction of ecological pyramids?
An ecosystem which can be easily damaged but can recover after some time if its damaging effect stops will have
A bamboo plant growing in a fir forest will occupy which trophic level?