Explanation

The US government's nuclear missile defense shield is the Ground-Based Midcourse Defense (GMD). 

The system was initially called "National Missile Defense" (NMD).

Current Name:

In 2003, the ground-based component was renamed "Ground-Based Midcourse Defense" (GMD).

Explanation

NVR (Network Video Recorder) is a device used to record video footage from IP (network) cameras.

It stores and manages surveillance video data digitally over a network.

Explanation

$\lambda =\frac{v}{f}$

Let's plug in our given values and see what we get!

$\lambda =\frac{340\frac{m}{s}}{440s^{-1}}$

$\lambda =0.773m$

Explanation



MIRTH (خوشی، مسرت، شادمانی)

Merriment – (خوشی، تفریح)

Explanation

The lungs are located on either side of the breastbone in the chest cavity 

Explanation

The word "drama" originates from Ancient Greek. 

It comes from the Greek word "δρᾶμα" (drâma), meaning "a deed, action, dramatic performance, play, dramatic event," which in turn is derived from "δράω" (dráō), meaning "to act, to take action, to achieve". 

Explanation

Dogs are trained to detect a wide range of substances, including narcotics, weapons like firearms and ammunition, and even metals.

Their exceptional sense of smell allows them to be highly effective in various detection tasks. 

Explanation

Watch towers are elevated structures used to observe wide areas over long distances.

Ideal for surveillance, border security, and early threat detection.

Explanation

Step 1: Multiply the coefficients

$$-5\times 10=-50$$

Step 2: Multiply the variables

• $x cdot x = x^2$
  

• $y cdot y = y^2$
  

• $z cdot 1 = z$
  

• $a$ appears once

• $b$ appears once

Step 3: Combine all parts

$$-50abx^2y^2z$$

Explanation

The pattern decreases by 5, then 5 again:

18 → 13 (minus 5)

13 → 8 (minus 5)

8 → 3 (minus 5)