A is the answer because it multiplies itself by 3 each time
Answer:
A) A tentative statement used to guide a scientific investigation is called scientific hypothesis.
As hypothesis is a proposed details of a phenomena, it can guide us in one way or another to carry out the scientific investigation.
B) Makes prediction about future events is scientific hypothesis.
Scientific hypothesis bases on the observation made predicts about future events, which could be either true or false.
C) Can be tested many independent researches is a scientific theory.
A scientific theory is developed when it has been passed through many researches and had gained acceptance too.
D) Both Scientific theory and hypothesis are based on the observations of the natural phenomena.
Firstly, an observation is made based on natural phenomena, which leads to questions, then research or study is carried out to answer these questions leading to the formation of a hypothesis which upon successful testing forms a theory.
E) Scientific theory is a well-established highly reliable explanation.
It a highly sustained explanation based on facts of nature, that are confirmed via a lot of experiments.
Answer:
The correct option is B) Outer space
Explanation:
Most of the radiations emitted by the Earth are absorbed by the Earth;s surface. These radiations cause the Earth to get warm and also causes global warming. However, little of this radiation is reflected back towards the outer space. Hence, the correct option is B.
Answer:
Upwelling
Explanation:
Upwelling is the process through which cold water gets to ascends from the bottom, providing nutrients to the superficial stratum.
Upwelling is an ascending displacement of marine currents. The phenomenon<em> can also occur in lakes or freshwater dams</em>.
Wind blowing over the coast can cause surface water to move out to sea. This motion is complemented by a slow ascension of cold water coming from the bottom forward to the coast. This currents movement is known as upwelling.
Upwelling water is extremely cold and rich in nutrients, which result from remineralization, by bacterial action, of organic matter that accumulates in the deepest stratum of the water body.
The contact of minerals with photosynthesizing organisms in superficial layers produces a significantly high primary productivity.
