Question

Answer in points someone help

Answer 1

Answer:

A,B, C,D

Explanation:

1. Plants need at least 6 hours of direct sun daily. Part sun – Plants thrive with between 3 and 6 hours of direct sun per day. Part shade – Plants require between 3 and 6 hours of sun per day, but need protection from intense mid-day sun. Full shade – Plants require less than 3 hours of direct sun per day
2. Starch is a white, powdery substance consisting of glucose which is used by plants as food. The presence of starch in leaves is evidenced enough of the process of photosynthesis being carried out in leaves as the formation of starch necessitates photosynthesis.

• Reason
• We boil the leaf in alcohol when we are testing it for starch because to remove the green pigment chlorophyll present in it. For the starch test, we need to observe the colour change from brown to blue when iodine is put on the leaf. But, initially the leaf is green in colour which does not show the required observation. Hence to remove the green pigment present in the leaf we boil the leaf in alcohol when we are testing it for starch.

3. Anytime measuring (or observing) something causes a change in the original state, this is called the observer effect. ... Outside of the context of the double slit experiment, both the equipment and the observation could change the original state to be measured. An easy example of equipment interfering is a thermometer.

4. write it your self read the book and write the answer