Solution: Yes, the statement “the product of two consecutive positive integers is divisible by 2” is true. Justification: Let us... View Article
Solution: No, every positive integer cannot be of the form 4q + 2, where q is an integer. Justification: All... View Article
Solution: (B) 2 option (B) is the correct answer. Explanation: Let us determine the HCF of 65 and 117, 117 =... View Article
(C) an odd integer option (C) is the correct answer. Explanation: Let us assume that x = n2 – 1 From the above... View Article
Solution: (D) 2q+1 option (D) is the correct answer. Explanation: Odd integers are the integers that are not divisible by 2.... View Article
Solution: (C)2m option (C) is the correct answer. Explanation: Even integers are the integers that are divisible by 2. Hence, we... View Article
Answer A few of the harmful effects of agricultural practices on the environment are listed below Climate Change: Farming encourages monoculture... View Article
Answer The most common byproduct of fertilizer industries are oxides of nitrogen and sulphur. They move into the atmosphere and... View Article
Answer To manage waste in the fertiliser industry following steps must be taken: • For control of gaseous pollutants combustion... View Article
Answer Waste that is generated daily Measures to take to dispose of house waste are Kitchen waste like fruits and... View Article
Answer Activities in daily life that are eco-friendly are listed below Walking or cycling for short distances Turning off fans and... View Article
Answer Decomposers are micro-organisms that digest things that are dead or decaying and turn the dead plants and animals into... View Article
Answer The energy flow in the ecosystem is one of the significant factors that promote the survival of such a... View Article
Answer Ponds and lakes are natural ecosystems and they contain decomposers. Decomposers act as cleansing agents here, whereas an aquarium... View Article
(a) Biomagnification — Accumulation of chemicals at the successive trophic levels of a food chain (b) Ecosystem — Biotic components... View Article
Answer (a) The physical and biological world where we live in Environment An Environment is everything that is around us,... View Article
Answer Crops fields are known as artificial ecosystems because they are manmade where certain biotic and abiotic components are manipulated. A... View Article
Answer Advantages of cloth bags over plastic bags during shopping are listed below: Cloth bags can sustain more weight than... View Article
The common food chain of pond ecosystem is Phyto plankton ↓ Small aquatic animals larvae, shrimps, Insects ↓ Fish ↓... View Article
Improper disposal of waste is a curse to the environment due to the following reasons Due to improper disposal of... View Article
