Answer:
Physical changes
Explanation:
Like fold the paper , rip/cut the paper , etc. etc.
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
Explanation:
Sediment discharge was historically approximately 270 million cubic meters/year of suspended load and 130 million cubic meters/year of bedload. This has decreased 80% since 1850 and can be divided into three periods: historical period (pre 1900), pre-dam period (1932-1952), and post dam (1963-1982). Suspended sediment loads declined 43% between the historical and pre-dam and 51% from pre-dam to post-dam periods. The size of sediment also decreased drastically including a 72% decrease in the sand fraction. Most of this is due to dams on the tributaries acting as sediment traps primarily for the coarser sediments. Large-scale land clearing for agriculture contributed to increased sediment loads in the historic period.
Mass is a constant, howver weight is not constant on planet becuase the gravitational force is directly proportional to the acceleratoin due to gravity (gravitational constant). The force on gravity is shown on a scale and equal to weight
I'll be using the gravitational constant of the moon 1.6m/s² OR one can calculate the graviational constant on the moon, using the equation for universal gravitation
Using Newton's second law we can find weight, F (F-force of gravity)
F=ma We can deduct that mass is constand and a=g
F=mg Insert value of g, mass (constant)
F=10(1.6)
F=160 Weight=F
Weight=160 kg
In conclusion, a 10kg object has a mass of 10kg and 160 kg weight on the moon
Answer:
20
Explanation:
The ecosystem is made of tropic levels that starts from producers and ends on consumers. The producers get the maximum energy from the sun and then transfer only 10% of the total energy to the next tropic levels.
If snake receives 200 calories of the energy from eating a rabbit, then 10% of 200 = 20, would be passed down to the hawk.