Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany environmental factors soil-nature climate factors abiotic components

Salt concentration of the sea measured in parts per thousand is 

  1. 10-5

  2. 30-70

  3. 0-5

  4. 30-35
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The salt concentration of the sea is 3.5 %, which means it is about 30-35 ppm. So, this means that there are 35 gms of seawater for every 1 liter of water.

So, option D is the correct answer.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

Which of the following NGO releases State of Environment Report in India?

  1. Seva Bharati

  2. Development Alternatives

  3. Tirumitra

  4. Integrated Rural Development Organization
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Development Alternatives is a well-known Indian NGO that has been involved in environmental research and the publication of reports regarding the state of the environment in India.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

When ELR is less than ALR, resulting environmental lapse rate is known as

  1. Super Adiabatic

  2. Sub-Adiabatic

  3. ELR

  4. All of above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the Environmental Lapse Rate (ELR) is less than the Adiabatic Lapse Rate (ALR), the atmosphere is stable, a condition referred to as sub-adiabatic.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

What does help in reaeration from atmosphere?

  1. Turbidity

  2. Sunlight

  3. Oxygen

  4. Carbon dioxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Reaeration is the process by which oxygen is replenished in water. Turbulence (often described as turbidity or agitation) increases the surface area contact between air and water, facilitating oxygen transfer.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

State whether the following statements are true or false.
Generally,a larger human population could be maintained on the same amount of cultivated
land if people ate more plants rather than animals

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A larger human population can't be maintained on the same amount of cultivated land because after 2-3 yields of any crop the soil generally loses its fertility. Therefore, other lands have to be cultivated. So the correct option is "False".

Multiple choice botany environmental factors soil-nature climate factors abiotic components

Match List I (Vegetation areas) with List II(Area of distribution) and select the correct answer.

List-I List-II
a. Eastern Himalayas $1$. Kumaon to Kashmir
b. Western Himalayas $2$. Sikkim to NEFA
c. Gangetic Plain $3$. Gujarat to Kanyakumari
d. Malabar $4$. UP to Bihar and Bengal
  1. A-$4$, B-$1$, C-$3$, D-$2$
  2. A-$4$, B-$2$, C-$1$, D-$3$
  3. A-$2$, B-$3$, C-$4$, D-$1$
  4. A-$2$, B-$1$, C-$4$, D-$2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Matching the regions: Eastern Himalayas (Sikkim to NEFA), Western Himalayas (Kumaon to Kashmir), Gangetic Plain (UP to Bihar and Bengal), and Malabar (Gujarat to Kanyakumari).

Multiple choice botany environmental factors soil-nature climate factors abiotic components

If the average temperature of the sun increased, the wavelength of peak solar emission would:

  1. Shift to a shorter wavelength

  2. Shift to a longer wavelength

  3. Remain the same

  4. Impossible to tell from given information
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

According to Wien's Displacement Law, the wavelength of peak emission is inversely proportional to the temperature. If the temperature increases, the peak wavelength shifts to a shorter value.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

At the North Pole the sun will rise above the horizon on _________ and set below the horizon on __________

  1. June 22; September 23

  2. September 23; December 22

  3. March 21; September 23

  4. June 22; December 22
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At the North Pole, the Sun rises at the spring equinox (March 21) and sets at the autumnal equinox (September 23), resulting in six months of daylight followed by six months of darkness.

Multiple choice botany environmental factors soil-nature climate factors abiotic components

In the northern hemisphere, north-facing hillsides have a ____________ growing season than south-facing hillsides.

  1. Shorter

  2. Longer

  3. Up

  4. Down
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In the northern hemisphere, south-facing slopes receive more direct sunlight throughout the day, leading to warmer temperatures and a longer growing season. Conversely, north-facing slopes receive less direct sunlight, resulting in cooler conditions and a shorter growing season.