Black soil shows black colour due to compound

Description : `H_(2)S` reacts with lead acetate forming black compound which reacts with `O_(3)` to form another compound Y. The colour of the compound Y is:

Last Answer : `H_(2)S` reacts with lead acetate forming black compound which reacts with `O_(3)` to form another compound ... : A. black B. violet C. white D. green

Translucent spots of irregular shape between veins shows

Description : Translucent spots of irregular shape between veins shows

Last Answer : Ans. Mo deficiency

Mn deficiency shows

Description : Mn deficiency shows

Last Answer : Ans. Interveinal yellowing of younger leaves

Dia back and Little leaf disease in Citrus shows

Description : Dia back and Little leaf disease in Citrus shows

Last Answer : Ans. Cu deficiency

Downward cupping of leaves in Tobacco and Tea shows

Description : Downward cupping of leaves in Tobacco and Tea shows

Last Answer : Ans. S deficiency

Why Black soil is Black in colour? -SST 10th

Description : Why Black soil is Black in colour? -SST 10th

Last Answer : It is Black in colour due to high percentage of iron content.

What do you understand by the word regur ? (a) Black soil found in the Deccan (b) Grey-brown soil found in Russia (c) Red, colour sticky soil, found in the Amazon area (d) Black soil found in northern Argentina shop.ssbcrack.com

Description : What do you understand by the word regur ? (a) Black soil found in the Deccan (b) Grey-brown soil found in Russia (c) Red, colour sticky soil, found in the Amazon area (d) Black soil found in northern Argentina shop.ssbcrack.com

Last Answer : Ans: (a)

he soil which is found in the areas having heavy rainfall and high humidity, contains large quantity of organic matter and heavy and black in colour – a. Black soil b. Peat soil c. Forest soil d. Laterite soil

Description : he soil which is found in the areas having heavy rainfall and high humidity, contains large quantity of organic matter and heavy and black in colour – a. Black soil b. Peat soil c. Forest soil d. Laterite soil

Last Answer : b. Peat soil

Consider the following statements: 1. Buried service lines should be avoided in an expansive soil region. 2. A swelling pressure less than 20 kN/m2 is not of much consequence. 3. If soil is not black in colour, it is unlikely to be an expansive soil. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Description : Consider the following statements: 1. Buried service lines should be avoided in an expansive soil region. 2. A swelling pressure less than 20 kN/m2 is not of much consequence. 3. If soil is not black in colour, it is unlikely to be an ... (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Last Answer : (b) 1 & 2 only

Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable structure. Select the correct answer using the code given below: [(OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

Description : Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable ... OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

Last Answer : Ans: (b)

Red colour of red soil is due to

Description : Red colour of red soil is due to

Last Answer : Iron

White colour of soil is due to the presence of – a) Silica b) Iron c) Manganese oxide d) All of these

Description : White colour of soil is due to the presence of – a) Silica b) Iron c) Manganese oxide d) All of these

Last Answer : c) Manganese oxide

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of (a) appearance of the darker coloured individuals due to very poor sunlight (b) protective mimicry (c) inheritance of darker colour character acquired due to the darker environment (d) natural selection whereby the darker forms were selected.

Description : In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of (a) ... acquired due to the darker environment (d) natural selection whereby the darker forms were selected.

Last Answer : (d) natural selection whereby the darker forms were selected.

Assertion: Black soils are black in colour due to diffusion of iron in crystalline and metamorphic rocks. Reason: They develop deep cracks during hot weather Options: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true and R is not the correct explanation of A.(c) A is true but B is false. (d) A is false but R is true.

Description : Assertion: Black soils are black in colour due to diffusion of iron in crystalline and metamorphic rocks. Reason: They develop deep cracks during hot weather Options: (a) Both A and R are true and R is the correct explanation of ... of A.(c) A is true but B is false. (d) A is false but R is true.

Last Answer : (d) A is false but R is true.

Large portions of the earth with similar climate, soil, plant and animal life community is known as

Description : Large portions of the earth with similar climate, soil, plant and animal life community is known as

Last Answer : Ans. Biosphere

The soil, air and seed borne disease of wheat

Description : The soil, air and seed borne disease of wheat

Last Answer : Ans. Kernal bunt (Neovossia indica)

The soil borne disease of rice

Description : The soil borne disease of rice

Last Answer : Ans. Sheath blight of rice (Rhizoctonia oryzae)

Nutrients absorbed by plants from soil solution are carried upward through the

Description : Nutrients absorbed by plants from soil solution are carried upward through the