If you have a lung problem you may not be processing oxygen as well as you could and it could cause your blood to not oxygenate as well. This would cause you're heart to have to work harder to push enough oxygen through out your body.
Answer:
prevailing westerlies
jet stream
Answer:
jet stream and prevailing westernlies
Explanation:
B) chloroplast.
C) leukoplast.
D) nucleolus.
the awnser is c because i googled it for you UwU