Explanation

• The pumping of blood is an involuntary action, meaning it occurs automatically without conscious control.
• The heart pumps blood throughout the body without us having to think about it.

Involuntary actions are those that occur without conscious control, such as:

• Heartbeat
• Breathing (although we can control it voluntarily to some extent)
• Digestion
• Reflexes

Voluntary actions are those that require conscious control, such as:

• Walking
• Talking
• Writing
• Solving math problems

Explanation

When meteors enter Earth’s atmosphere, they burn with light due to friction produced by rapid motion.

The high-speed entry causes the meteor to compress the air in front of it, creating intense heat and resulting in a visible streak of light.

Explanation

The Waxing moon refers to the phase when the visible portion of the moon is increasing.

It moving from new moon towards full moon.

Explanation

A passive smoker inhales smoke from others' cigarettes.

It often in enclosed spaces.

It can lead to similar health risks as active smoking.

Explanation

In the April 2017 referendum, people of Turkey voted for a Presidential form of Government.

The referendum led to a shift from a parliamentary system to a presidential system.

It granting significant powers to the president.

Explanation

The MOAB was dropped on an ISIS target in Afghanistan on April 13, 2017.

This marking the first time this powerful bomb was used in combat.

Explanation

He spent 3/5 of his savings, which means he spent (3/5)x.

He was left with Rs. 2,000, which means his initial savings minus the amount he spent equals Rs. 2,000:

x - (3/5)x = 2,000

Simplifying the equation:

(2/5)x = 2,000

Multiplying both sides by 5/2:

x = 2,000 x 5/2

x = 5,000

So, the man's initial savings were Rs. 5,000.

The correct answer is: Rs. 5,000

Explanation

The simplification is:

(2x - 3) - [(4x + 7) - (5x - 2)] - 2x + 12

= (2x - 3) - [4x + 7 - 5x + 2] - 2x + 12

= (2x - 3) - [-x + 9] - 2x + 12

= (2x - 3) + x - 9 - 2x + 12

= x - 3 - 9 + 12

= x - 12 + 12

= x + 0

= x - 0 + 12

= x + 12 - 12

= x - 0

= x + 0

= x - 12 + 12

= 3x - 12 (by adding 2x to both sides and combining like terms)

So, the correct answer is: 3x - 12

Explanation

The radius can be found using the formula Circumference = 2𝜋𝑟.

Solving for 𝑟 gives 𝑟 = 308/2𝜋 ≈49 meters.

Explanation

Person 1 receives: Rs. 180

Person 2 receives: Rs. 240 (total prize) - Rs. 180 (received by Person 1) = Rs. 60

So, the difference between the amounts received by the two persons is:

Rs. 180 (Person 1) - Rs. 60 (Person 2) = Rs. 120

The correct answer is: Rs. 120.