Compared to the Sun, the star Betelgeuse is A. Less luminous and warmer
B. Less luminous and cooler
C. More luminous and warmer
D. More luminous and cooler

Although the star VY Canis Majoris in the constellation Canis Major has a much cooler surface temperature than our sun, this star's sheer size makes it a super-luminous star. Its radius is thought to be around 1400 times than of our sun, and its luminosity 270,000 greater than our sun.

Explanation:

european union policies. the eu's long-term objective is to achieve levels of air quality that do not result in unacceptable impacts on, and risks to, human health and the environment. eu policies aim to reduce exposure to air pollution by reducing emissions and setting limits and target values for air quality.

the main environmental problems in western europe were: energy production/acid rain, nuclear power/waste, air pollution/climate, heavy metals, pesticides, water pollution, solid waste, and unforeseen accidents. many environmental problems are common to most european countries.

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