The correct answer is A. An oak tree
Explanation:
The term "primary producer" is used to describe organisms that can produce their own energy without feeding on others, this includes plants and algae that produce food and energy through photosynthesis using light and other inorganic compounds. Additionally, the primary producers can be identified because in ecosystems they are always on the first level and they are eaten by others.
According to this, the one that is a primary producer is an oak tree because this is a type of plant and therefore can produce its food through photosynthesis different to others that need to feed on other organisms to obtain energy.
The length of each side of a decagon that is 65 units total, each side will be 6.5 units.
Decagon = 10 sides.
65 ÷ 10 = 6.5
Answer:
can we see the table it's not showing
The type of chemical sedimentary rock that would fizzle if exposed to acid (recall that the mineral calcite reacts vigorously to hydrochloric acid) is Chalk.
Sedimentary rocks are shaped from deposits of pre-present rocks or pieces of once-living organisms that gather on the world's floor. If sediment is buried deeply, it turns into compacted and cemented, forming sedimentary rock.
Common sedimentary rocks consist of sandstone, limestone, and shale. these rocks frequently begin as sediments carried in rivers and deposited in lakes and oceans. when buried, the sediments lose water and turn out to be cemented to form rock. Tuffaceous sandstones incorporate volcanic ash.
Sedimentary rocks are varieties of rock that might be shaped by means of the buildup or deposition of mineral or natural debris at Earth's surface, accompanied by cementation. Sedimentation is the collective call for methods that reason this debris to settle in the area.
Learn more about sedimentary rock here brainly.com/question/2599180
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