Most plants grow best in soil that has a pH of between 5 and 7. Frank's backyard lawn has a pH of 4. Not very many plants grow in
Frank's back yard. He adds lime to the soil, and the pH goes up to 6.
What will most likely happen to plant growth in Frank's back yard?
A.
Only the roots of the plants will grow faster.
B. More plants will be able to grow.
C.
There will be no change in plant growth.
D. Fewer plants will be able to grow.

B

Explanation:

Since the pH is now within the ideal range more plants will be able to grow. This seems like a trick question but thankfully is not.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.