Answer:
4. all of the above
Explanation:
all of these are correct so...all of the above
The toxins are the substances which decreases the conc. of oxygen in wzater and increase toxicity
Cancerous cell just continue to divide giving rise to mases of cells called tumor.
Answer:
In this case, the scientist want to test the presence of the limonite in the yellow rocks, So, proposed hypothesis should include the color of rock they want to observe and the posssible outcome, which need to be tested. So, a proposed hypothesis can be: The rocks, which have yellow color are made up of mineral lime.
