I believe the answer is 1500
Answer:
The correct answer is oxygen was produced by photosynthesis.
Explanation:
During the process of photosynthesis carbon dioxide is consumed and oxygen is released in presence of sunlight.
when plant is placed in the yellow solution and kept in sunlight the plant undergo photosynthesis.As a result the yellow solution in the tube in presence of sunlight turns blue because oxygen is released by reduction which is responsible for the blue coloration of the solution.
On the other hand the plant that is placed in dark unable to undergo photosynthesis due to which there is no change in color.
<span>The circulatory body system, otherwise known as the cardiovascular or vascular system, is composed of four major parts: the heart, arteries, and veins. The vital responsibilities of the said system is to circulate blood throughout the body, transport nutrients, and carry away waste for elimination. Circulation starts when the heart pumps out blood through the main artery aorta, into the lung capillaries for oxygenation, and throughout the body via the arteries. Besides oxygen, nutrients and metabolic products are distributed as blood circulates, waste is processed and soon after eliminated by the kidneys as blood circulates there, and un-oxygenated blood returns to the heart through the superior and inferior vena cava (veins), the whole cycle therefore carrying on.</span>
Sodium carbonate is a basic salt because it is a salt derived from a weak acid and strong base.
Industrial Age!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!