Climate Change:
Very short: Long-term shifts in Earth's average weather, mainly getting warmer due to human activities like burning fossil fuels.
Easy: Think of it like the Earth's average temperature and weather patterns changing over many years. Mostly, it's getting hotter because we're releasing gases (from cars and factories) that trap heat.
Environment:
Very short: Everything around us, including living and non-living things.
Easy: It's all the stuff that surrounds us – the air, water, land, plants, animals, and even things like buildings. It's the whole natural and human-made world we live in.