Algae are being investigated by the Bronx Zoo scientists as a source of bioenergy. Bioenergy is a form of energy that comes from recently living organisms and can be used to
produce transportation fuels, heat, electricity, and products. Using bioenergy to power cars
and provide electricity could reduce the amount of harmful carbon dioxide emissions in
Earth's atmosphere. If algae begin to be grown on a large scale across the country for
production into biofuels, what other effect might the algal growth have on the carbon cycle?

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.