Post a New Question

science

posted by .

please could someone help me with these question please i have loked on websites but i am still stuck.

true or false and i need to write a comment why:-

plants photosynthesise 24 hours a day

respiration uses up carbon dioxide

thanks guys!

  • science -

    false (photosynthesis requires light)

    true (carbon dioxide is consumed and oxygen is produced)

  • science -

    First link I tried: photosynthesis does not occur at night.
    http://www.newton.dep.anl.gov/askasci/bot00/bot00191.htm

    If you are talking about respiration of humans, we exhale CO2 so we aren't using it up. Plants use CO2.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question