Explanation

A clause is a group of words that contains both a subject and a predicate (verb).

Example: "She reads books" is a clause, where "She" is the subject, and "reads books" is the predicate.

Explanation

Endangered species are those at high risk of extinction in the near future due to habitat loss, hunting, or environmental changes.

Examples include the Snow Leopard and Asian Elephant.

Explanation

Explanation

The given compound is an ionic compound

It is made up of:

• one potassium
• one manganese,
• four oxygen atoms.

Oxidation numbers of potassium (K) and oxygen (O) are +1 and -2 respectively.

Let us assume that the oxidation number of Mn is $x$.

Since ionic compounds are neutral, the net charge on them is zero.

(Oxidation number of K) + (Oxidation number of Mn) + (4 $\times$ The oxidation number of O) = $0$

(1)$\times$(K) + (1)$\times$(Mn) + 4$\times$(O) = $0$

$(1)$$\times$(+1) + (1)$\times$($x$) + 4$\times$(-2) = $0$

$x$ = +7

Hence, the oxidation number of $\text{Mn}$ in ${\text{KMnO}}_4$ is +7.

Explanation

A calorimeter is an instrument used to measure the amount of heat absorbed or released during a chemical reaction or physical change.

It is essential for studying thermodynamic properties 

Explanation

According to Newton's second law, 

F=ma, a constant non-zero force results in uniform acceleration of the mass.

Explanation

 Tobacco mosaic virus (TMV) has a rod-like or cylindrical shape.

It's essentially a rigid, helical structure with a protein shell (capsid) surrounding a single-stranded RNA molecule

The capsid is composed of protein subunits arranged in a helical structure. 

Explanation

 Hepatitis A is primarily spread through contaminated food or water that has been in contact with infected feces, meaning it's transmitted through the fecal-oral route. 

Explanation

The periosteum is a fibrous connective tissue membrane that covers the outer surface of most bones, providing blood supply and contributing to bone growth and repair. 

Explanation

The exoskeleton of coelenterates is made of Calcium carbonate. 

Coelenterates like corals primarily have exoskeletons composed of calcium carbonate