Which gas is a major component of the natural greenhouse effect and also rises due to human activities?

✅ A. The variety of living organisms in an area or on Earth

a: The variety of living organisms in an area or on Earth | b: The height of a mountain | c: A type of fossil fuel | d: The amount of traffic only Read more

✅ A. Ursa Minor

✅ C.  Montreal protocol

✅ C. The Sun

a: Tides alone | b: Earth's core alone | c: The Sun | d: The Moon Read more

✅ B. An area where water covers or saturates the soil for part or all of the year

a: A dry dune | b: An area where water covers or saturates the soil for part or all of the year | c: A volcanic crater only | d: A glacier peak Read more

✅ D. A species facing a high risk of extinction

a: A nonliving resource | b: A species with no habitat needs | c: A species found everywhere | d: A species facing a high risk of extinction Read more

✅ B. Mars

a: Venus | b: Mars | c: Mercury | d: Jupiter Read more

✅ B. Ethnology