Tag: physical resources

Quizzes (22) Questions (72)

Questions Related to physical resources

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

What is best pH of soil for cultivation?

  1. 3.4 - 5.4

  2. 4.5 - 5.5

  3. 5.5 - 6.5

  4. 6.5 - 7.5
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • Soil nature is described in pH values. It can be alkaline, acidic or neutral. 
  • Highly acidic and highly saline soil often remains injurious for plant growth, microorganisms, etc. 
  • Soil pH strongly affects microbial activities. Neutral or slightly acidic soil (5.5-6.5) remains best for the growth of the majority of plants.

Therefore, the correct answer is option C.

Multiple choice biology physical resources air and winds wind energy air as a natural resource

Gaseous envelop surrounding the earth is called

  1. Lithosphere

  2. Mesophere

  3. Stratosphere

  4. Atmosphere
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The atmosphere is a gaseous envelope surrounding the earth. It is mostly composed of nitrogen, oxygen, argon, carbon dioxide and some other gasses in trace amounts. The atmosphere is held in place by gravity of the earth.    Thus the correct answer is option D.

Multiple choice biology physical resources air and winds wind energy air as a natural resource

What causes movement in air?

  1. Difference in temperature

  2. Difference in pressure

  3. Difference in volume

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Movements in the air are caused due to pressure and temperature gradient. The high temperature leads to the rising of air which creates a low-pressure region. The air from the surrounding high-pressure zone moves to low-pressure area to stabilise the pressure which creates a breeze
So, the correct answer is 'Both A and B'
Multiple choice biology physical resources air and winds wind energy air as a natural resource

The instrument which measures wind velocity is

  1. Lactometer

  2. Anemometer

  3. Hydrometer

  4. Barometer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Anemometer is the instrument used to measure wind velocity. Hydrometer measures specific gravity (or relative density) of liquids. Barometer is used to measure atmospheric pressure. Lactometer measures cream content of milk.

Multiple choice biology physical resources air and winds wind energy air as a natural resource

The instrument which measures wind velocity is

  1. Lactometer

  2. Anemometer

  3. Hydrometer

  4. Barometer
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An anemometer is the standard instrument used to measure wind speed or velocity. A barometer measures atmospheric pressure, a hydrometer measures liquid density, and a lactometer measures the purity of milk.

Multiple choice biology physical resources air and winds wind energy air as a natural resource

As the air temperature increases, the air's capacity for water vapor:

  1. Increases

  2. Decreases

  3. Remains constant

  4. Is unrelated to air temperature and can either increase or decrease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Warmer air has a higher kinetic energy, allowing it to hold more water vapor molecules in the gaseous phase. This relationship is described by the Clausius-Clapeyron relation, which shows that saturation vapor pressure increases with temperature.

Multiple choice biology physical resources air and winds wind energy air as a natural resource

The earth's first atmosphere was composed primarily of:

  1. Carbon dioxide and water vapor

  2. Hydrogen and helium

  3. Oxygen and water vapor

  4. Argon and nitrogen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Earth's primordial atmosphere was formed from the gases present in the solar nebula, which were primarily hydrogen and helium. These light gases were eventually lost to space due to the Earth's low gravity and solar wind.