Start learning →

UPSC CDS Science & Technology — practice questions — page 8

Explore 300 free Science & Technology questions in UPSC CDS Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Science & Technology with Quill →

Science & Technology questions and exercises with answers

Showing questions 211–240 of 300.

People were nomadic, wandering in search of food, until about:Read the answer and worked solution →Plants of the same kind cultivated at one place on a large scale are called a:Read the answer and worked solution →Crops sown in the rainy season, June to September, are called:Read the answer and worked solution →Wheat, gram, pea and mustard grown from October to March are:Read the answer and worked solution →Paddy is grown only in the rainy season because it:Read the answer and worked solution →The process of loosening and turning the soil is called:Read the answer and worked solution →Big clumps of soil in a ploughed field are called:Read the answer and worked solution →Damaged seeds float on water because they:Read the answer and worked solution →Which tool sows seeds uniformly at equal distance and depth and covers them with soil?Read the answer and worked solution →Seeds of which crop are first grown in a nursery and then transplanted?Read the answer and worked solution →Manure is an organic substance obtained from:Read the answer and worked solution →Urea, ammonium sulphate, super phosphate and potash are examples of:Read the answer and worked solution →NPK in fertilisers stands for nitrogen, phosphorus and:Read the answer and worked solution →Growing legumes one season and wheat the next replenishes soil nitrogen. This practice is:Read the answer and worked solution →Plants contain nearly what share of water?Read the answer and worked solution →Moat, chain pump, dhekli and rahat are traditional methods of:Read the answer and worked solution →Which irrigation method sprinkles water like rain and suits uneven land and coffee plantations?Read the answer and worked solution →Which irrigation system delivers water drop by drop near roots and is best for fruit plants?Read the answer and worked solution →2,4-D is an example of a:Read the answer and worked solution →A cereal crop usually takes how long to mature?Read the answer and worked solution →A combine is a machine that works as both harvester and:Read the answer and worked solution →Small farmers separate grain from chaff by:Read the answer and worked solution →Catch the kharif cropsRead the answer and worked solution →Pop the farm toolsRead the answer and worked solution →Run the farming calendarRead the answer and worked solution →Slice the farming wordsRead the answer and worked solution →Manure or fertiliserRead the answer and worked solution →Sort the farm methodsRead the answer and worked solution →Type the numberRead the answer and worked solution →Crop production bingoRead the answer and worked solution →

Worked practice questions

People were nomadic, wandering in search of food, until about:

  1. 10,000 BCE
  2. 1,000 BCE
  3. 50,000 BCE
  4. 100 BCE
Show answer and solution

Correct answer: A. 10,000 BCE

1. They ate raw fruits and hunted animals. 2. Nomadic life lasted till 10,000 BCE. 3. Then cultivation of rice and wheat began. _Source: syllabus Science, Chapter 1, Crop Production and Management._

Open this question →

Plants of the same kind cultivated at one place on a large scale are called a:

  1. Field
  2. Crop
  3. Weed
  4. Grove
Show answer and solution

Correct answer: B. Crop

1. A wheat field has only wheat plants. 2. That is a crop. 3. Crops are classified by growing season. _Source: syllabus Science, Chapter 1, Crop Production and Management._

Open this question →

Crops sown in the rainy season, June to September, are called:

  1. Kharif crops
  2. Rabi crops
  3. Zaid crops
  4. Cash crops
Show answer and solution

Correct answer: A. Kharif crops

1. The rainy season runs June to September. 2. Rainy season crops are kharif. 3. Paddy and maize are examples. _Source: syllabus Science, Chapter 1, Crop Production and Management._

Open this question →

How to practise

  1. Choose a Science & Technology question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Science topics

Current AffairsEnvironment & EcologyAgricultureIndian EconomyIndian GeographyMinerals & IndustriesBiotechnologyIndian Society