Q. Some planktons decomposes back into water column, releasing

View solution

Q. 13C isotope of carbon having

View solution

Q. What indicates of fossil fuel being burnt?

View solution

Q. Atmospheric concentration of CO₂ has increased about

View solution

Q. Three isotopes of carbon are important in:

View solution

Q. Living organisms through photosynthesis takes up CO₂ from atmosphere, building up

View solution

Q. About 10 kg of 14C is produced in atmosphere each year by action particle radiation of

View solution

Q. Isotopes are chemically identical forms of same element, but, having different

View solution

Q. Herbivorous zooplankton depends on

View solution

Q. Carnivorous zooplankton eat herbivorous

View solution

Q. Anthropogenic effects are "human caused" such as:

View solution

Q. In carbon cycle, exchanging of carbon in different chemical forms occurred in

View solution

Q. Snow covered surfaces, having

View solution

Q. Biome is a distinctive ecological system characterised by nature of its:

View solution

Q. An atom is surrounded by:

View solution

Q. According to Nasa's data, researchers indicated that: world war 3 will be fought over

View solution

Q. Vegetation- covered surfaces having:

View solution

Q. Carbon dioxide is regarded as one of major:

View solution

Q. Carbondioxide fertilisation affects C3 plants more than:

View solution

Q. Phytoplanktons' are eaten by:

View solution