DSE Odisha TGT Science CBZ Mock Test - 3 - OTET MCQ

During the 6^th century CE, the Nalas were an Indian dynasty that governed areas of modern-day Chhattisgarh and Odisha. Their core region encompassed the areas surrounding the districts of Kalahandi and Koraput.

Manjul Bhargava became the first Indian male to win the prestigious Fields Medal in Mathematics. He received this award in 2014 for his groundbreaking work in number theory.

Bengaluru, known as the ‘garden city,’ faces its worst domestic water crisis. Over 30 localities receive water on a rotational basis every alternate day, with supply lasting only 30-45 minutes. The city, once abundant with 262 lakes, now has only 81 due to real estate development. The remaining lakes are at risk, impacting the city’s water supply. The reliance on the Krishna Raja Sagara reservoir is strained by a weak monsoon, leading to water shortages and skyrocketing tanker prices. Community involvement is crucial for lake preservation.

The River Nagavali, also known as Langulya, flows between the Rushikulya and Godavari basins in southern Odisha and northern Andhra Pradesh, India.

As we know the formula,

∠DAC = ∠B + ∠C
(Exterior angle prop. of a Δ ABC)
According to question,
130° = 2A + 3A
5A = 130°
A = 26°
∴ ∠B = 52°; ∠C = 78°

The triarchic theory of intelligence is also called the three forms of intelligence. Based on this theory, research on human intelligence take a more cognitive approach. 
Sternberg explained only three types of intelligence: Componential or analytical sub theory, Experiential or creative sub theory, and Contextual or practical sub theory. 
Hence, the correct answer is, 'Social.'

NEP 2020 aims to provide a holistic and multidisciplinary education that focuses on the overall development of students.

Extra classes could be arranged for such students so as to  bridge the gap in studies (concepts).

Critical pedagogy includes relationships between teaching and learning. Its proponents claim that it is a continuous process of what they call unlearning, learning, and relearning, reflection, evaluation, and the impact that these actions have on students. Critical pedagogy is a philosophy of education and social movement that combines education with critical theory. Paulo Freire was the first to describe it.
Freire endorses students' ability to think critically about their educational situation; this way of thinking allows them to recognize connections between their individual problems and experiences and the social contexts in which they are embedded.

Playing games along with studies in school is very important for the physical growth and balance of the children. It also develops in them qualities like cooperation and spirit of teamwork to work with each other.

NEP 2020 emphasizes a flexible and creative National Curriculum Framework (NCF) to promote a more innovative and engaging learning experience.

If any teacher is involved in gender discrimination, then it may lead to diminished effort or performance of the students. Many times it happens that a teacher is biased towards a particular gender which includes he/she is giving more marks to either girls or boys. Not only this, even boys are getting more harsh punishments than girls even if they have done the same type of mistakes. All these decrease the morale of the other students. So, a teacher should not be partial on any grounds. 
Hence, the correct answer is, 'may lead to diminished effort or performance of the students.'

 

V² = 4.32 × 10¹³
V² = 43.2 × 10¹²
V = 6.57 × 10⁶

When a non-metallic oxide reacts with a base, the general outcome is the formation of salt and water. This reaction is crucial in understanding the properties of non-metallic oxides and their behavior when they come into contact with bases. It illustrates the acidic nature of non-metallic oxides and their reactions.

Metalloids shows both the properties of metals as well as non metals.

 A more reactive metal displaces a less reactive metal from the salt solution (refer to reactivity series).

The order in which metals displace each other from the solution of their salts can be given with the help of their standard electrode potential. Since magnesium has the least standard electrode potential so it is the most strong reducing agent.

So the required order we get is: Mg > Al > Zn > Fe > Cu

Reactivity Series:

Assigning the oxidation state of Br in each molecule using oxidation number of O=−2,H=+1

Since the oxidation potential of HBrO is less than that of the reduction potential i.e left side potential is less than the right side potential of the conversion.
Thus HBrO is the species that will undergo disproportionation.

All the three compounds, i.e. [PtCI₂(NH₃)₂], [PdCl₂Brl] and [Pt(NH₃)(py)(CI)(Br)] exhibit cis and trans isomerism.

Molar mass = 40 + 12 + 3(16) = 100g

• Development is the sum of two processes-growth and differentiation.
• To begin with, it is essential and sufficient to know that the development of a mature plant from a zygote follows a precise and highly ordered succession of events.

Cytokinin is added to culture medium to induce cell division and cell differentiation. If cytokine is not added to culture medium, there will be very little growth in culture.

In plants, growth can refer to change in size, it is restricted to meristematic regions of the plant and cannot be reversed.

Chlorophyll's primary role in photosynthesis is to absorb sunlight and convert it into chemical energy. This process is crucial for driving the light-dependent reactions, where the absorbed light energy is used to produce ATP and NADPH, which are then utilized in the Calvin cycle to fix carbon dioxide into carbohydrates.

Irreversible increase in mass or volume of plant part is called apparent growth. Apparent growth is permanent and cannot be reversed back as it occurs due to increase in cell number.

The maximum photosynthesis takes place in blue and red regions of the visible light as indicated by the absorption spectra of chlorophyll a and chlorophyll b. Absorption spectrum of a particular pigment is the curve plotted on a graph paper representing the amount of light absorbed at each wavelength by that pigment. The absorption spectra of these pigments show that they absorb maximum at 480 nm (blue light) and 680 nm (red light) regions of spectrum.

Thus, the correct answer is option C.

Mediterranean orchid Ophrys ensures pollination by co-evolution, sexual deceit and pseudo-copulation. One petal of flower bears an uncanny resemblance to female of bee in size, colour and markings.

In ecological pyramids, saprophytes do not have any place even though they play very vital role in ecosystem. This is because ecological pyramids does not take into account same species belonging to two or more trophic levels.

In nature, a given habitat has resources to support a certain number of individuals of a population, beyond which no further growth is possible. This limit is called as nature's carrying capacity (K) for that species in that habitat.

Explanation:
The biodiversity of a given region is influenced by various factors, and the options provided in the question - climate and topography, possibility for dispersal, and evolutionary history - are all important contributors to the outcome of biodiversity in a region. Here's a detailed explanation of each factor:
1. Climate & topography:
- Climate refers to the long-term weather patterns in a region, including temperature, rainfall, and seasonality.
- Different climates support different types of organisms, as they have specific adaptations to survive in specific environmental conditions.
- Topography refers to the physical features of the land, such as mountains, valleys, and rivers. It affects the distribution of habitats and the movement of organisms.
2. Possibility for dispersal:
- Dispersal refers to the movement of organisms from one place to another.
- The ability of organisms to disperse to different areas is crucial for the establishment of diverse populations and the colonization of new habitats.
- Factors that affect dispersal include the presence of barriers (such as mountains or oceans), availability of suitable habitats, and the ability of organisms to travel long distances.
3. Evolutionary history:
- Evolutionary history refers to the cumulative changes in organisms over time.
- The biodiversity of a region can be influenced by its historical connection to other regions and the movement of species over evolutionary timescales.
- Regions with longer evolutionary histories may have higher levels of biodiversity due to the accumulation of diverse lineages and adaptations.
Conclusion:
All of the factors mentioned - climate and topography, possibility for dispersal, and evolutionary history - interact and contribute to the biodiversity of a given region. Therefore, the correct answer is option D: All of the above.