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Alex Ar [27]
3 years ago
10

Carbon dioxide is a colorless, odorless gas. Why is it considered a pollutant

Biology
1 answer:
olga nikolaevna [1]3 years ago
3 0
Acidification of the ocean and the greenhouse effect.
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Which factors determine strength of gravitational force between two objects?
DIA [1.3K]

Answer:

mass and distance

Explanation:

As the two objects get further away, the distance between them increase and the strength of the gravitational force decreases.  If the distances decreases, the force will increase.  The bigger the object, the greater the force.

3 0
3 years ago
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You are studying with a classmate, who explains that increasing the amount of nutrients in a lake helps submerged, rooted aquati
Nataly_w [17]

Answer:

E-You disagree because the resulting increase in phytoplankton at the surface would inhibit sunlight from penetrating into the water, thus inhibiting photosynthesis in the submerged plants.

Explanation:

Eutrophication is the process wherein nutrients specifically phosphorus and nitrogen are present in excess in a water body such as a lake. The increased concentration of nutrients promoter the growth of cyanobacteria and algae such as phytoplankton.

The increased population of phytoplankton in surface water reduces the oxygen availability and clarity of water for the organisms present in deeper layers.  Also, reduced clarity of water limits the amount of solar radiations penetrating the surface water to reach the deeper layers.

Increased nutrient levels of the lake would rather inhibit the growth of submerged plants due to reduced availability of sunlight as caused by presence of phytoplankton in surface water.  

5 0
3 years ago
The forward and reverse PCR primers used for the amplification of a VNTR locus on chromosome number 4 are 20 bases and 21 bases
zimovet [89]

The repeats which occur together on a chromosome are referred to as VNTR. The length of each repeat is 60bp.

The first primer is 20bp and is 53 bp away from 1st repeat. Therefore, the total length of sequence amplified by the first primer till 1st repeat = 20+53 = 73bp. Beyond this point 6 repeats on 60 bp are present, hence, the length becomes = 73 + (60X6) = 433bp.

Now the reverse primer which is 21bp in length is located 28bp from the repeat on its side. Reverse primer comes from the opposite direction, so it must be present after the 6 repeats.

The total length of the amplified region = 433 + 28 + 21 = 482 bp.

5 0
3 years ago
Light penetrates the clear water of the open ocean more deeply than it does lake
SOVA2 [1]
The answer is A: phytoplankton provides nutrients to consumers in the ecosystem.

Hope this helps:)
6 0
3 years ago
How do mountains form
liraira [26]
Movements of tectonic plates create volcanoes along the plate boundaries, which erupt and form mountains. A volcanic arc system is a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts.
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3 years ago
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