It’s D, other answers don’t make sense
Answer: option c
Sieve tubes element are use to transport sugars through out the plants.
Explanation:
Sieve tubes element are elongated and specialised living cells found in the phloem of a flowetlring plant.
They help the phloem to function very well.
Their main function is to transport carbohydrates especially sucrose in the plants. E.g transporting of sucrose from leaves to the fruits.
Answer: C) gas bubbles
Explanation:
An abiotic factor is the factor which influence the life of living beings on earth. The formation of gas bubbles inside the swamp is the example of abiotic factor.
The gas bubbles are formed inside the swamp, marsh or bog. It consists of the mixture of hydrogen sulfide, carbon dioxide and methane. These gases produce naturally in these water bodies due to anaerobic digestion and fermentation of the animal or plant matter inside the water body which results in the formation of bubbles in the body of water.
The environmental impact of transport is significant because transport is a major user of energy, and burns most of the world's petroleum. This creates air pollution, including nitrous oxides and particulates, and is a significant contributor to global warming through emission of carbon dioxide.
Answer:
It will become less negative
Explanation:
When a train moves in a direction with decreasing velocity , then it is for sure than acceleration is also decreasing. With stowaways in between before 1 KM of completion of the journey will bring the vehicle in a situation where it will have negative acceleration. Now it is given that force remains same , then with constant mass it is the acceleration which has to increase in order to justify the equation
![F = m*a](https://tex.z-dn.net/?f=F%20%3D%20m%2Aa)
Since the acceleration was already negative, an increase in acceleration will make it less negative