Take this Quiz: ACT Science — mixed practice, including what the measurement cannot settle | Zestly

Question 1

A study of the Zylor plant measured height in centimeters after 30 days in four soils. Sandy: 12. Clay: 18. Loam: 25. Peat: 22. In which soil did the plants grow to more than twice the height reached in the poorest of the four?

Accepted Answer

Loam

Answer

Sandy

Answer

Clay

Answer

Peat

Question 2

A study of the Zylor plant measured height in centimeters after 30 days in four soils. Sandy: 12. Clay: 18. Loam: 25. Peat: 22. Which comparison do the measurements support?

Accepted Answer

Plants in Loam soil outgrew those in Peat soil.

Answer

Plants in Clay soil outgrew those in Loam soil.

Answer

Plants in Sandy soil outgrew those in Peat soil.

Answer

Plants in Sandy soil outgrew those in Clay soil.

Question 3

A study of the Zylor plant measured height in centimeters after 30 days in four soils. Sandy: 12. Clay: 18. Loam: 25. Peat: 22. Suppose a fifth soil, Silt, had produced a height of 20 centimeters. Which statement would then be true?

Accepted Answer

Silt produced shorter plants than Peat but taller than Clay.

Answer

Silt produced shorter plants than Clay.

Answer

Silt produced the tallest plants of the five soils.

Answer

Silt produced taller plants than Loam.

Question 4

A study of the Zylor plant measured height in centimeters after 30 days in four soils. Sandy: 12. Clay: 18. Loam: 25. Peat: 22. Which of these CANNOT be concluded from the measurements?

Answer

Of the four soils tested, Loam gave the greatest height.

Answer

Plants in Peat soil grew taller than those in Clay soil.

Answer

Of the four soils tested, Sandy gave the least height.

Answer

Zylor plants need 25 centimeters of room in order to grow.

Question 5

A researcher tested how light intensity affects the rate of photosynthesis in Vora leaves. The temperature was held at 20 degrees Celsius throughout, light intensity was varied from 100 to 500 lux, and the measured rate rose from 2 units to 10 units. Which factor did the researcher deliberately vary?

Answer

The temperature of the leaves

Answer

The intensity of the light

Answer

The rate of photosynthesis

Answer

The species of leaf used

Question 6

A researcher tested how light intensity affects the rate of photosynthesis in Vora leaves. The temperature was held at 20 degrees Celsius throughout, light intensity was varied from 100 to 500 lux, and the measured rate rose from 2 units to 10 units. Why was the temperature held at 20 degrees Celsius for every run?

Answer

So that a change in temperature could not be the reason for any change in rate.

Answer

So that the conditions would match those the leaves meet outdoors.

Answer

Because photosynthesis runs fastest at that temperature.

Answer

Because it is the temperature at which the rate was to be measured.