Answer:
Experimental
Explanation:
bruj i just looked it up on google
verb
1.
carry out (something) in gradual stages.
2.
PHYSICS
adjust the phase of (something), especially so as to synchronize it with something else.
noun
1.
a distinct period or stage in a series of events or a process of change or development.
2.
each of the aspects of the moon or a planet, according to the amount of its illumination, especially the new moon, the first quarter, the full moon, and the last quarter.
Not able to see it or a very clear substance
Answer:
I would like to help but i don't know it either
Explanation: sorry
Air pollution is the presence in or introduction into the air of a substance which has harmful or poisonous effects.
Ill health is : a condition of inferior health in which some disease or impairment of function is present but is usually not as serious in terms of curtailing activity as an illness elderly parents who are in ill–health and need their financial and personal help