Self Studies
Self Studies
Self Studies
Self Studies

Natural Resources Test - 26

Result Self Studies

Natural Resources Test - 26
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following environment is richest in free oxygen?
    Solution
    • Oxygen is a major component (21%) of the atmosphere as well as it is an abundant chemical element on earth. 
    • The main reason for the presence of oxygen in the atmosphere is photosynthesis. 
    • In this process the autotrophs convert inorganic materials such as carbon dioxide and water to biomass and oxygen is also generated during this process that is released into the atmosphere.

    So, the correct answer is option B.
  • Question 2
    1 / -0
    The water cycle is mainly driven by:
    Solution
    The water cycle is a continuous cycle where most of the water evaporates from the water bodies due to the heat of the sunlight, rises into the air, and becomes part of a cloud. It falls back to earth as precipitation due to gravity and then evaporates again. This repeats again and again in a never-ending cycle. 
    Thus, the correct answer is option  C.
  • Question 3
    1 / -0
    When precipitation comes down to the earth in the liquid form, it is called ______.
    Solution
    • In meteorology, precipitation is any product of the condensation of atmospheric water vapour that falls under gravitational pull from clouds. Main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. 
    • Rain is the precipitation of water in a liquid state. 
    Hence, the correct option is B. 
  • Question 4
    1 / -0
    Removal of topsoil by wind and water is called:
    Solution
    Soil is formed due to the weathering of rocks. Soil has many layers. The topmost layer is called the topsoil and is the most fertile. The removal of this topsoil is called soil erosion. The movement of water and wind can lead to the removal of the topsoil.
  • Question 5
    1 / -0
    The upper most weathered layer of earth's crust is:
    Solution
    The earth that we live on is one of the planets of the solar system. Its crust is deep and we stay on its uppermost layer. The upper layer of the earth is formed by soil. It can get weathered away due to external forces like water, wind, etc.
    So the correct answer is 'Soil.'
  • Question 6
    1 / -0
    Water logging of soil makes it physiologically dry because:
    Solution
    The soil needs to be aerated and watered properly to allow proper growth and development of the plants. When the plants are watered frequently or the water is not drained properly, then the water logging takes place. Due to the accumulation of the water in the soil, the oxygen cannot enter into the soil and in the roots of the plants. This results in the death of the plants. 
    Thus, the correct answer is option B. 
  • Question 7
    1 / -0
    Major component of the atmosphere on venus and mars planets is
    Solution
    Carbon dioxide is an important gaseous component of the environment. It is fixed by the green plants by the process of photosynthesis. It is released during expiration by the process of respiration. Venus is twin planet to earth as it has atmosphere. It is the hottest planet as its is made up of 97% carbon dioxide. Mars is also a planet which has atmosphere made up of 95.5% carbon dioxide.
    So, the correct answer is option A.
  • Question 8
    1 / -0
    Nitrification means:
    Solution
    The conversion of organic nitrogen of dead plants and animals into ammonia by soil microbes is called ammonification. Ammonia is further oxidized to produce nitrite and then to nitrate. This oxidation is known as nitrification. Thus, option B is the correct answer.

  • Question 9
    1 / -0
    Water containing harmful impurities is said to be polluted. Pollution occurs due to :
    Solution
    Pollution of water is mainly caused due to the dumping of raw sewage released from homes, and the bacteria breeding from it. It is estimated that globally $$80$$ percent of wastewater is dumped back into the water supply without being treated. So, dumping of untreated sewage is a cause of water pollution.

    Pollution of water is also caused due to factory wastes, as factories often dump dirty water, used chemicals and oils, sewage, and cafeteria waste directly into the ground or into a community water source, such as a river, lake, or stream. Waste dumped into the ground can seep through the soil and  poison the groundwater that feeds other water sources, such as wells and ponds.

    So, both options (A) and (B) are correct .

    Therefore, the final answer is option (C).
  • Question 10
    1 / -0
    An increase in carbon dioxide content in the atmosphere would not cause
    Solution
    Carbon dioxide is not related to ozone layer depletion while it can cause global warming, an increase in photosynthesis rate in plants and makes the environment retain more heat.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now