Why are the borders of some states straight and others crooked

answer:

conflict,physical obstacles

Explanation:

Some borders may be crooked because the surrounding territory might be already claimed or if there is conflict there. Other reasons might be there is a important resource so a country might surround it to benefit an example would be oil. Physical boundaries like a mountains or rivers can also create a crooked boarder.

temperatures get warmer — and heatwaves are more common. nothing says summer like warm weather. this rise in temperatures is caused by the tilt of the earth's axis. our planet doesn't sit perfectly straight as it spins — it has a slight lean of approximately 23.5 degrees with respect to the sun, called the axial tilt.

explanation: