Science All General Science Aptitude

The property of metals wherein they can be beaten into thin sheets is called B. malleability. Malleability is the ability of a material, typically a metal, to deform under pressure and form a thin sheet without breaking.

The correct answer is A. Squamous epithelium. The esophagus and the lining of the mouth are covered with stratified squamous epithelium. This type of epithelium is well-suited for areas subjected to mechanical stress, such as the lining of the mouth and the esophagus, as it provides protection and allows for flexibility.

The correct answer is C. M,TM.

Here's why:

• In a number system like ours, each period consists of three places.
• The millions period is the third period to the left of the decimal point, coming after the ones period and the thousands period.
• Therefore, the millions period consists of the places millions (M), ten millions (TM), and hundred millions (HM).

The other options are incorrect because:

• Option A (M, TH, HM) includes "TH", which is not a place value in the millions period.
• Option B (O,T,M) includes "O" and "T", which are not place values at all.
• Option D (TTh, HTh, M) repeats "Th" and "HTh", which are not valid place values in the millions period.

I hope this explanation helps! Let me know if you have any other questions.

The pH of pure water at room temperature is considered neutral, and it is C. 7. A pH of 7 is considered neither acidic nor alkaline, and it is the midpoint on the pH scale.

B. Muscular Tissue is not a connective tissue. Muscular tissue is one of the four basic types of tissues in the human body, and it is responsible for the contraction and movement of body parts. Connective tissues, on the other hand, provide support, structure, and metabolic support for other tissues and organs. Options A (Cartilage tissue), C (Adipose Tissue), and D (Ligament) are examples of connective tissues.

The walls of sclerenchyma cells are thickened due to D. Lignin. Lignin is a complex polymer that provides rigidity and strength to the cell walls of sclerenchyma cells. The presence of lignin makes these cells tough and rigid, serving a supportive function in plant tissues.

The ability of a metal to be drawn into thin wires is called A. Ductility. Ductility is a property that allows a material, such as a metal, to undergo significant deformation under tensile stress, resulting in the formation of thin wires.

The organs that have different basic structure or design but have a similar appearance and perform similar functions are called B. analogous organs. These organs are the result of convergent evolution, where different organisms develop similar traits or functions independently due to adaptation to similar environmental challenges. Homologous organs (option C) have a similar basic structure or design but may have different functions, reflecting a common evolutionary ancestry.

The power (P) in an electrical circuit can be calculated using the formula:

P = IV

where:

P is the power,
V is the voltage,
I is the current.

In this case, with a voltage  of 240V and a current of 0.6A:

P=240 × 0.6 = 144W

So, the power of the electric bulb is 144W, which corresponds to option C.

The least reactive element belonging to Group 17 (also known as Group VIIA or the halogens) is D. Fluorine. Fluorine is the most reactive and electronegative element in this group, and reactivity generally decreases down the group.