Answer:1 unit forward
Explanation:
Given
Photographer wants to take a picture so he take three step forward i.e. +3 units , four back i.e.-4 units , Seven steps forward i.e. +7 units,
Finally 5 steps backward i.e. -5 units
therefore its net displacement is
=+3-4+7-= +1 unit
That his displacement is 1 unit forward
Answer:
Geography is the spatial study of the earth’s surface (from the Greek geo, which means “Earth,” and graphein, which means “to write”). Geographers study the earth’s physical characteristics, its inhabitants and cultures, phenomena such as climate, and the earth’s place within the universe. Geography examines the spatial relationships between all physical and cultural phenomena in the world. Geographers also look at how the earth, its climate, and its landscapes are changing due to cultural intervention.
The first known use of the word geography was by Eratosthenes of Cyrene (modern-day Libya in North Africa), an early Greek scholar who lived between 276 and 194 BCE. He devised one of the first systems of longitude and latitude and calculated the earth’s circumference. Additionally, he created one of the first maps of the world based on the available knowledge of the time. Around the same time, many ancient cultures in (China, southern Asia, Polynesia, and the Arabian Peninsula) also developed maps and navigation systems used in geography and cartography.
I hope it helps
Answer: The body system charges due to the release of oestrogen hormones. Bad or unwanted blood is discharged from the body from the private part.
Explanation :During this periodic or monthly discharge of blood through the vagina,The female reproductive system experiences some changes which comes with physical signs in their behaviour.Due to the release of hormones,females experience joint pains, headache,Abdominal cramps, constipation, tender breast and fluid retention.All these signs are caused be the follicle stimulating hormones(oestrogen and progesterone).
