Explanation

The speed of light is much faster than the speed of sound in air.

Light travels 186 thousand miles in 1 second, while sound takes almost 5 seconds to travel 1 mile

Light is a electromagnetic wave that's why it travel faster than sound wave however electromagnetic waves don't need medium to travel but sound wave need medium to travel

ND5-07-2023

Explanation

Petroleum, coal, and natural gas are all fossil fuels formed from the remains of ancient plants and animals.

They are non-renewable energy sources and major contributors to global energy production.

Explanation

The most effective way to address local environmental problems is a multi-pronged approach that includes:

• Reducing consumption
• Promoting reuse
• Recycling
• Supporting sustainable practices.

This involves individual actions, community initiatives, and advocating for policy changes to protect the environment. 

Explanation

Relative Humidity Depends on temperature, weather, and location

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Humidity in the air was measured by a Hygrometer

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Concept Of Humidity: Important Information: Please read Carefully 

Humidity is the presence of water vapor in the atmosphere.

The higher the rate of temperatures, weather, and (hot) place tend to be the more water vapor rises into the air, and the more humidity that area is.

The lower the rate of temperatures, weather, and (cold) places tend to be the less water vapor rises into the air, and the less humidity that area is. 

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Explanation

In a direct relationship, one variable follows the same change when it comes to increasing and decreasing.

For example,

Ø  when the pressure increases then the temperature also increases.

Ø  When the pressure decreases, then the temperature decreases.

Explanation

In fact, Agricultural Production consumes more fresh water than any other human activity.

 agriculture accounts (on average) for 70 percent of all freshwater withdrawals globally

Explanation

The greenhouse effect occurs when gases like CO₂ and methane trap heat from the sun in the Earth’s atmosphere.

This trapped heat causes a rise in global temperatures, contributing to climate change.

Explanation

Decomposition is slow in deserts due to low moisture and extreme temperatures.

Lack of water limits microbial activity, reducing the breakdown of organic matter.

Explanation

Nitrogen makes up about 78% of Earth's atmosphere,

It is the most abundant gas.

It is essential for plant growth as.

It is a key component of proteins and DNA.

Nitrogen is the chemical element with the symbol N and atomic number 7.

It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772.

Explanation

Fossil fuels (like coal, oil, and natural gas) are non-renewable because they take millions of years to form.

Once used, they cannot be replenished on a human timescale.